21677916

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{1759}}^1$

素因数の和:1858

約数の個数: 48

約数和(自身を含む): 55193600

約数和(自身を除く): 33515684

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 79, 156, 158, 237, 316, 474, 948, 1027, 1759, 2054, 3081, 3518, 4108, 5277, 6162, 7036, 10554, 12324, 21108, 22867, 45734, 68601, 91468, 137202, 138961, 274404, 277922, 416883, 555844, 833766, 1667532, 1806493, 3612986, 5419479, 7225972, 10838958, 21677916]

約数ペア:

[(1, 21677916), (2, 10838958), (3, 7225972), (4, 5419479), (6, 3612986), (12, 1806493), (13, 1667532), (26, 833766), (39, 555844), (52, 416883), (78, 277922), (79, 274404), (156, 138961), (158, 137202), (237, 91468), (316, 68601), (474, 45734), (948, 22867), (1027, 21108), (1759, 12324), (2054, 10554), (3081, 7036), (3518, 6162), (4108, 5277)]