20870812

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{4549}}^1$

素因数の和:4621

約数の個数: 24

約数和(自身を含む): 38729600

約数和(自身を除く): 17858788

約数列:

[1, 2, 4, 31, 37, 62, 74, 124, 148, 1147, 2294, 4549, 4588, 9098, 18196, 141019, 168313, 282038, 336626, 564076, 673252, 5217703, 10435406, 20870812]

約数ペア:

[(1, 20870812), (2, 10435406), (4, 5217703), (31, 673252), (37, 564076), (62, 336626), (74, 282038), (124, 168313), (148, 141019), (1147, 18196), (2294, 9098), (4549, 4588)]