21360550

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{13781}}^1$

素因数の和:13824

約数の個数: 24

約数和(自身を含む): 41015232

約数和(自身を除く): 19654682

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 155, 310, 775, 1550, 13781, 27562, 68905, 137810, 344525, 427211, 689050, 854422, 2136055, 4272110, 10680275, 21360550]

約数ペア:

[(1, 21360550), (2, 10680275), (5, 4272110), (10, 2136055), (25, 854422), (31, 689050), (50, 427211), (62, 344525), (155, 137810), (310, 68905), (775, 27562), (1550, 13781)]