388761261

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^3\times {\mathrm{2699}}^1$

素因数の和:2766

約数の個数: 32

約数和(自身を含む): 625536000

約数和(自身を除く): 236774739

約数列:

[1, 3, 7, 19, 21, 57, 133, 361, 399, 1083, 2527, 2699, 6859, 7581, 8097, 18893, 20577, 48013, 51281, 56679, 144039, 153843, 358967, 974339, 1076901, 2923017, 6820373, 18512441, 20461119, 55537323, 129587087, 388761261]

約数ペア:

[(1, 388761261), (3, 129587087), (7, 55537323), (19, 20461119), (21, 18512441), (57, 6820373), (133, 2923017), (361, 1076901), (399, 974339), (1083, 358967), (2527, 153843), (2699, 144039), (6859, 56679), (7581, 51281), (8097, 48013), (18893, 20577)]