21055690

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{211}}^1\times {\mathrm{587}}^1$

素因数の和:822

約数の個数: 32

約数和(自身を含む): 40388544

約数和(自身を除く): 19332854

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 211, 422, 587, 1055, 1174, 2110, 2935, 3587, 5870, 7174, 9979, 17935, 19958, 35870, 49895, 99790, 123857, 247714, 619285, 1238570, 2105569, 4211138, 10527845, 21055690]

約数ペア:

[(1, 21055690), (2, 10527845), (5, 4211138), (10, 2105569), (17, 1238570), (34, 619285), (85, 247714), (170, 123857), (211, 99790), (422, 49895), (587, 35870), (1055, 19958), (1174, 17935), (2110, 9979), (2935, 7174), (3587, 5870)]