21501900

素因数分解:

$2^2\times 3^2\times 5^2\times 7^1\times {\mathrm{3413}}^1$

素因数の和:3440

約数の個数: 108

約数和(自身を含む): 77047152

約数和(自身を除く): 55545252

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 25, 28, 30, 35, 36, 42, 45, 50, 60, 63, 70, 75, 84, 90, 100, 105, 126, 140, 150, 175, 180, 210, 225, 252, 300, 315, 350, 420, 450, 525, 630, 700, 900, 1050, 1260, 1575, 2100, 3150, 3413, 6300, 6826, 10239, 13652, 17065, 20478, 23891, 30717, 34130, 40956, 47782, 51195, 61434, 68260, 71673, 85325, 95564, 102390, 119455, 122868, 143346, 153585, 170650, 204780, 215019, 238910, 255975, 286692, 307170, 341300, 358365, 430038, 477820, 511950, 597275, 614340, 716730, 767925, 860076, 1023900, 1075095, 1194550, 1433460, 1535850, 1791825, 2150190, 2389100, 3071700, 3583650, 4300380, 5375475, 7167300, 10750950, 21501900]

約数ペア:

[(1, 21501900), (2, 10750950), (3, 7167300), (4, 5375475), (5, 4300380), (6, 3583650), (7, 3071700), (9, 2389100), (10, 2150190), (12, 1791825), (14, 1535850), (15, 1433460), (18, 1194550), (20, 1075095), (21, 1023900), (25, 860076), (28, 767925), (30, 716730), (35, 614340), (36, 597275), (42, 511950), (45, 477820), (50, 430038), (60, 358365), (63, 341300), (70, 307170), (75, 286692), (84, 255975), (90, 238910), (100, 215019), (105, 204780), (126, 170650), (140, 153585), (150, 143346), (175, 122868), (180, 119455), (210, 102390), (225, 95564), (252, 85325), (300, 71673), (315, 68260), (350, 61434), (420, 51195), (450, 47782), (525, 40956), (630, 34130), (700, 30717), (900, 23891), (1050, 20478), (1260, 17065), (1575, 13652), (2100, 10239), (3150, 6826), (3413, 6300)]