21058100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{449}}^1$

素因数の和:537

約数の個数: 72

約数和(自身を含む): 53121600

約数和(自身を除く): 32063500

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 67, 70, 100, 134, 140, 175, 268, 335, 350, 449, 469, 670, 700, 898, 938, 1340, 1675, 1796, 1876, 2245, 2345, 3143, 3350, 4490, 4690, 6286, 6700, 8980, 9380, 11225, 11725, 12572, 15715, 22450, 23450, 30083, 31430, 44900, 46900, 60166, 62860, 78575, 120332, 150415, 157150, 210581, 300830, 314300, 421162, 601660, 752075, 842324, 1052905, 1504150, 2105810, 3008300, 4211620, 5264525, 10529050, 21058100]

約数ペア:

[(1, 21058100), (2, 10529050), (4, 5264525), (5, 4211620), (7, 3008300), (10, 2105810), (14, 1504150), (20, 1052905), (25, 842324), (28, 752075), (35, 601660), (50, 421162), (67, 314300), (70, 300830), (100, 210581), (134, 157150), (140, 150415), (175, 120332), (268, 78575), (335, 62860), (350, 60166), (449, 46900), (469, 44900), (670, 31430), (700, 30083), (898, 23450), (938, 22450), (1340, 15715), (1675, 12572), (1796, 11725), (1876, 11225), (2245, 9380), (2345, 8980), (3143, 6700), (3350, 6286), (4490, 4690)]