20449926

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1489}}^1$

素因数の和:1613

約数の個数: 48

約数和(自身を含む): 51136800

約数和(自身を除く): 30686874

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 109, 126, 218, 327, 654, 763, 981, 1489, 1526, 1962, 2289, 2978, 4467, 4578, 6867, 8934, 10423, 13401, 13734, 20846, 26802, 31269, 62538, 93807, 162301, 187614, 324602, 486903, 973806, 1136107, 1460709, 2272214, 2921418, 3408321, 6816642, 10224963, 20449926]

約数ペア:

[(1, 20449926), (2, 10224963), (3, 6816642), (6, 3408321), (7, 2921418), (9, 2272214), (14, 1460709), (18, 1136107), (21, 973806), (42, 486903), (63, 324602), (109, 187614), (126, 162301), (218, 93807), (327, 62538), (654, 31269), (763, 26802), (981, 20846), (1489, 13734), (1526, 13401), (1962, 10423), (2289, 8934), (2978, 6867), (4467, 4578)]