20342511

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{139}}^1$

素因数の和:276

約数の個数: 48

約数和(自身を含む): 35642880

約数和(自身を除く): 15300369

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 101, 139, 161, 207, 303, 417, 483, 707, 909, 973, 1251, 1449, 2121, 2323, 2919, 3197, 6363, 6969, 8757, 9591, 14039, 16261, 20907, 22379, 28773, 42117, 48783, 67137, 98273, 126351, 146349, 201411, 294819, 322897, 884457, 968691, 2260279, 2906073, 6780837, 20342511]

約数ペア:

[(1, 20342511), (3, 6780837), (7, 2906073), (9, 2260279), (21, 968691), (23, 884457), (63, 322897), (69, 294819), (101, 201411), (139, 146349), (161, 126351), (207, 98273), (303, 67137), (417, 48783), (483, 42117), (707, 28773), (909, 22379), (973, 20907), (1251, 16261), (1449, 14039), (2121, 9591), (2323, 8757), (2919, 6969), (3197, 6363)]