20951172

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{277}}^1$

素因数の和:489

約数の個数: 72

約数和(自身を含む): 58286592

約数和(自身を除く): 37335420

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 191, 198, 277, 382, 396, 554, 573, 764, 831, 1108, 1146, 1662, 1719, 2101, 2292, 2493, 3047, 3324, 3438, 4202, 4986, 6094, 6303, 6876, 8404, 9141, 9972, 12188, 12606, 18282, 18909, 25212, 27423, 36564, 37818, 52907, 54846, 75636, 105814, 109692, 158721, 211628, 317442, 476163, 581977, 634884, 952326, 1163954, 1745931, 1904652, 2327908, 3491862, 5237793, 6983724, 10475586, 20951172]

約数ペア:

[(1, 20951172), (2, 10475586), (3, 6983724), (4, 5237793), (6, 3491862), (9, 2327908), (11, 1904652), (12, 1745931), (18, 1163954), (22, 952326), (33, 634884), (36, 581977), (44, 476163), (66, 317442), (99, 211628), (132, 158721), (191, 109692), (198, 105814), (277, 75636), (382, 54846), (396, 52907), (554, 37818), (573, 36564), (764, 27423), (831, 25212), (1108, 18909), (1146, 18282), (1662, 12606), (1719, 12188), (2101, 9972), (2292, 9141), (2493, 8404), (3047, 6876), (3324, 6303), (3438, 6094), (4202, 4986)]