199800964

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{21521}}^1$

素因数の和:21747

約数の個数: 24

約数和(自身を含む): 383263776

約数和(自身を除く): 183462812

約数列:

[1, 2, 4, 11, 22, 44, 211, 422, 844, 2321, 4642, 9284, 21521, 43042, 86084, 236731, 473462, 946924, 4540931, 9081862, 18163724, 49950241, 99900482, 199800964]

約数ペア:

[(1, 199800964), (2, 99900482), (4, 49950241), (11, 18163724), (22, 9081862), (44, 4540931), (211, 946924), (422, 473462), (844, 236731), (2321, 86084), (4642, 43042), (9284, 21521)]