668844618

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{199417}}^1$

素因数の和:199478

約数の個数: 32

約数和(自身を含む): 1474097856

約数和(自身を除く): 805253238

約数列:

[1, 2, 3, 6, 13, 26, 39, 43, 78, 86, 129, 258, 559, 1118, 1677, 3354, 199417, 398834, 598251, 1196502, 2592421, 5184842, 7777263, 8574931, 15554526, 17149862, 25724793, 51449586, 111474103, 222948206, 334422309, 668844618]

約数ペア:

[(1, 668844618), (2, 334422309), (3, 222948206), (6, 111474103), (13, 51449586), (26, 25724793), (39, 17149862), (43, 15554526), (78, 8574931), (86, 7777263), (129, 5184842), (258, 2592421), (559, 1196502), (1118, 598251), (1677, 398834), (3354, 199417)]