21021100

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{6781}}^1$

素因数の和:6826

約数の個数: 36

約数和(自身を含む): 47094208

約数和(自身を除く): 26073108

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 155, 310, 620, 775, 1550, 3100, 6781, 13562, 27124, 33905, 67810, 135620, 169525, 210211, 339050, 420422, 678100, 840844, 1051055, 2102110, 4204220, 5255275, 10510550, 21021100]

約数ペア:

[(1, 21021100), (2, 10510550), (4, 5255275), (5, 4204220), (10, 2102110), (20, 1051055), (25, 840844), (31, 678100), (50, 420422), (62, 339050), (100, 210211), (124, 169525), (155, 135620), (310, 67810), (620, 33905), (775, 27124), (1550, 13562), (3100, 6781)]