20013567

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{557}}^1$

素因数の和:655

約数の個数: 32

約数和(自身を含む): 32140800

約数和(自身を除く): 12127233

約数列:

[1, 3, 7, 21, 29, 59, 87, 177, 203, 413, 557, 609, 1239, 1671, 1711, 3899, 5133, 11697, 11977, 16153, 32863, 35931, 48459, 98589, 113071, 230041, 339213, 690123, 953027, 2859081, 6671189, 20013567]

約数ペア:

[(1, 20013567), (3, 6671189), (7, 2859081), (21, 953027), (29, 690123), (59, 339213), (87, 230041), (177, 113071), (203, 98589), (413, 48459), (557, 35931), (609, 32863), (1239, 16153), (1671, 11977), (1711, 11697), (3899, 5133)]