20876986

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{317}}^1$

素因数の和:498

約数の個数: 32

約数和(自身を含む): 36061200

約数和(自身を除く): 15184214

約数列:

[1, 2, 13, 17, 26, 34, 149, 221, 298, 317, 442, 634, 1937, 2533, 3874, 4121, 5066, 5389, 8242, 10778, 32929, 47233, 65858, 70057, 94466, 140114, 614029, 802961, 1228058, 1605922, 10438493, 20876986]

約数ペア:

[(1, 20876986), (2, 10438493), (13, 1605922), (17, 1228058), (26, 802961), (34, 614029), (149, 140114), (221, 94466), (298, 70057), (317, 65858), (442, 47233), (634, 32929), (1937, 10778), (2533, 8242), (3874, 5389), (4121, 5066)]