21542850

素因数分解:

$2^1\times 3^2\times 5^2\times 7^2\times {\mathrm{977}}^1$

素因数の和:1009

約数の個数: 108

約数和(自身を含む): 67396914

約数和(自身を除く): 45854064

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 30, 35, 42, 45, 49, 50, 63, 70, 75, 90, 98, 105, 126, 147, 150, 175, 210, 225, 245, 294, 315, 350, 441, 450, 490, 525, 630, 735, 882, 977, 1050, 1225, 1470, 1575, 1954, 2205, 2450, 2931, 3150, 3675, 4410, 4885, 5862, 6839, 7350, 8793, 9770, 11025, 13678, 14655, 17586, 20517, 22050, 24425, 29310, 34195, 41034, 43965, 47873, 48850, 61551, 68390, 73275, 87930, 95746, 102585, 123102, 143619, 146550, 170975, 205170, 219825, 239365, 287238, 307755, 341950, 430857, 439650, 478730, 512925, 615510, 718095, 861714, 1025850, 1196825, 1436190, 1538775, 2154285, 2393650, 3077550, 3590475, 4308570, 7180950, 10771425, 21542850]

約数ペア:

[(1, 21542850), (2, 10771425), (3, 7180950), (5, 4308570), (6, 3590475), (7, 3077550), (9, 2393650), (10, 2154285), (14, 1538775), (15, 1436190), (18, 1196825), (21, 1025850), (25, 861714), (30, 718095), (35, 615510), (42, 512925), (45, 478730), (49, 439650), (50, 430857), (63, 341950), (70, 307755), (75, 287238), (90, 239365), (98, 219825), (105, 205170), (126, 170975), (147, 146550), (150, 143619), (175, 123102), (210, 102585), (225, 95746), (245, 87930), (294, 73275), (315, 68390), (350, 61551), (441, 48850), (450, 47873), (490, 43965), (525, 41034), (630, 34195), (735, 29310), (882, 24425), (977, 22050), (1050, 20517), (1225, 17586), (1470, 14655), (1575, 13678), (1954, 11025), (2205, 9770), (2450, 8793), (2931, 7350), (3150, 6839), (3675, 5862), (4410, 4885)]