218126972

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{127709}}^1$

素因数の和:127781

約数の個数: 24

約数和(自身を含む): 443409120

約数和(自身を除く): 225282148

約数列:

[1, 2, 4, 7, 14, 28, 61, 122, 244, 427, 854, 1708, 127709, 255418, 510836, 893963, 1787926, 3575852, 7790249, 15580498, 31160996, 54531743, 109063486, 218126972]

約数ペア:

[(1, 218126972), (2, 109063486), (4, 54531743), (7, 31160996), (14, 15580498), (28, 7790249), (61, 3575852), (122, 1787926), (244, 893963), (427, 510836), (854, 255418), (1708, 127709)]