318392571

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{241}}^1\times {\mathrm{1187}}^1$

素因数の和:1491

約数の個数: 32

約数和(自身を含む): 496793088

約数和(自身を除く): 178400517

約数列:

[1, 3, 7, 21, 53, 159, 241, 371, 723, 1113, 1187, 1687, 3561, 5061, 8309, 12773, 24927, 38319, 62911, 89411, 188733, 268233, 286067, 440377, 858201, 1321131, 2002469, 6007407, 15161551, 45484653, 106130857, 318392571]

約数ペア:

[(1, 318392571), (3, 106130857), (7, 45484653), (21, 15161551), (53, 6007407), (159, 2002469), (241, 1321131), (371, 858201), (723, 440377), (1113, 286067), (1187, 268233), (1687, 188733), (3561, 89411), (5061, 62911), (8309, 38319), (12773, 24927)]