21051900

素因数分解:

$2^2\times 3^4\times 5^2\times {\mathrm{23}}^1\times {\mathrm{113}}^1$

素因数の和:162

約数の個数: 180

約数和(自身を含む): 71839152

約数和(自身を除く): 50787252

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 25, 27, 30, 36, 45, 46, 50, 54, 60, 69, 75, 81, 90, 92, 100, 108, 113, 115, 135, 138, 150, 162, 180, 207, 225, 226, 230, 270, 276, 300, 324, 339, 345, 405, 414, 450, 452, 460, 540, 565, 575, 621, 675, 678, 690, 810, 828, 900, 1017, 1035, 1130, 1150, 1242, 1350, 1356, 1380, 1620, 1695, 1725, 1863, 2025, 2034, 2070, 2260, 2300, 2484, 2599, 2700, 2825, 3051, 3105, 3390, 3450, 3726, 4050, 4068, 4140, 5085, 5175, 5198, 5650, 6102, 6210, 6780, 6900, 7452, 7797, 8100, 8475, 9153, 9315, 10170, 10350, 10396, 11300, 12204, 12420, 12995, 15255, 15525, 15594, 16950, 18306, 18630, 20340, 20700, 23391, 25425, 25990, 30510, 31050, 31188, 33900, 36612, 37260, 38985, 45765, 46575, 46782, 50850, 51980, 61020, 62100, 64975, 70173, 76275, 77970, 91530, 93150, 93564, 101700, 116955, 129950, 140346, 152550, 155940, 183060, 186300, 194925, 210519, 228825, 233910, 259900, 280692, 305100, 350865, 389850, 421038, 457650, 467820, 584775, 701730, 779700, 842076, 915300, 1052595, 1169550, 1403460, 1754325, 2105190, 2339100, 3508650, 4210380, 5262975, 7017300, 10525950, 21051900]

約数ペア:

[(1, 21051900), (2, 10525950), (3, 7017300), (4, 5262975), (5, 4210380), (6, 3508650), (9, 2339100), (10, 2105190), (12, 1754325), (15, 1403460), (18, 1169550), (20, 1052595), (23, 915300), (25, 842076), (27, 779700), (30, 701730), (36, 584775), (45, 467820), (46, 457650), (50, 421038), (54, 389850), (60, 350865), (69, 305100), (75, 280692), (81, 259900), (90, 233910), (92, 228825), (100, 210519), (108, 194925), (113, 186300), (115, 183060), (135, 155940), (138, 152550), (150, 140346), (162, 129950), (180, 116955), (207, 101700), (225, 93564), (226, 93150), (230, 91530), (270, 77970), (276, 76275), (300, 70173), (324, 64975), (339, 62100), (345, 61020), (405, 51980), (414, 50850), (450, 46782), (452, 46575), (460, 45765), (540, 38985), (565, 37260), (575, 36612), (621, 33900), (675, 31188), (678, 31050), (690, 30510), (810, 25990), (828, 25425), (900, 23391), (1017, 20700), (1035, 20340), (1130, 18630), (1150, 18306), (1242, 16950), (1350, 15594), (1356, 15525), (1380, 15255), (1620, 12995), (1695, 12420), (1725, 12204), (1863, 11300), (2025, 10396), (2034, 10350), (2070, 10170), (2260, 9315), (2300, 9153), (2484, 8475), (2599, 8100), (2700, 7797), (2825, 7452), (3051, 6900), (3105, 6780), (3390, 6210), (3450, 6102), (3726, 5650), (4050, 5198), (4068, 5175), (4140, 5085)]