21000612450

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{223}}^1\times {\mathrm{21649}}^1$

素因数の和:21916

約数の個数: 96

約数和(自身を含む): 54121536000

約数和(自身を除く): 33120923550

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 29, 30, 50, 58, 75, 87, 145, 150, 174, 223, 290, 435, 446, 669, 725, 870, 1115, 1338, 1450, 2175, 2230, 3345, 4350, 5575, 6467, 6690, 11150, 12934, 16725, 19401, 21649, 32335, 33450, 38802, 43298, 64670, 64947, 97005, 108245, 129894, 161675, 194010, 216490, 323350, 324735, 485025, 541225, 627821, 649470, 970050, 1082450, 1255642, 1623675, 1883463, 3139105, 3247350, 3766926, 4827727, 6278210, 9417315, 9655454, 14483181, 15695525, 18834630, 24138635, 28966362, 31391050, 47086575, 48277270, 72415905, 94173150, 120693175, 140004083, 144831810, 241386350, 280008166, 362079525, 420012249, 700020415, 724159050, 840024498, 1400040830, 2100061245, 3500102075, 4200122490, 7000204150, 10500306225, 21000612450]

約数ペア:

[(1, 21000612450), (2, 10500306225), (3, 7000204150), (5, 4200122490), (6, 3500102075), (10, 2100061245), (15, 1400040830), (25, 840024498), (29, 724159050), (30, 700020415), (50, 420012249), (58, 362079525), (75, 280008166), (87, 241386350), (145, 144831810), (150, 140004083), (174, 120693175), (223, 94173150), (290, 72415905), (435, 48277270), (446, 47086575), (669, 31391050), (725, 28966362), (870, 24138635), (1115, 18834630), (1338, 15695525), (1450, 14483181), (2175, 9655454), (2230, 9417315), (3345, 6278210), (4350, 4827727), (5575, 3766926), (6467, 3247350), (6690, 3139105), (11150, 1883463), (12934, 1623675), (16725, 1255642), (19401, 1082450), (21649, 970050), (32335, 649470), (33450, 627821), (38802, 541225), (43298, 485025), (64670, 324735), (64947, 323350), (97005, 216490), (108245, 194010), (129894, 161675)]