21835580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83983}}^1$

素因数の和:84005

約数の個数: 24

約数和(自身を含む): 49382592

約数和(自身を除く): 27547012

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 83983, 167966, 335932, 419915, 839830, 1091779, 1679660, 2183558, 4367116, 5458895, 10917790, 21835580]

約数ペア:

[(1, 21835580), (2, 10917790), (4, 5458895), (5, 4367116), (10, 2183558), (13, 1679660), (20, 1091779), (26, 839830), (52, 419915), (65, 335932), (130, 167966), (260, 83983)]