399427557

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{1213}}^1$

素因数の和:1397

約数の個数: 32

約数和(自身を含む): 576892800

約数和(自身を除く): 177465243

約数列:

[1, 3, 19, 53, 57, 109, 159, 327, 1007, 1213, 2071, 3021, 3639, 5777, 6213, 17331, 23047, 64289, 69141, 109763, 132217, 192867, 329289, 396651, 1221491, 2512123, 3664473, 7007501, 7536369, 21022503, 133142519, 399427557]

約数ペア:

[(1, 399427557), (3, 133142519), (19, 21022503), (53, 7536369), (57, 7007501), (109, 3664473), (159, 2512123), (327, 1221491), (1007, 396651), (1213, 329289), (2071, 192867), (3021, 132217), (3639, 109763), (5777, 69141), (6213, 64289), (17331, 23047)]