251144257

素因数分解:

$7^3\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{373}}^1$

素因数の和:558

約数の個数: 32

約数和(自身を含む): 318348800

約数和(自身を除く): 67204543

約数列:

[1, 7, 13, 49, 91, 151, 343, 373, 637, 1057, 1963, 2611, 4459, 4849, 7399, 13741, 18277, 33943, 51793, 56323, 96187, 127939, 237601, 394261, 673309, 732199, 1663207, 2759827, 5125393, 19318789, 35877751, 251144257]

約数ペア:

[(1, 251144257), (7, 35877751), (13, 19318789), (49, 5125393), (91, 2759827), (151, 1663207), (343, 732199), (373, 673309), (637, 394261), (1057, 237601), (1963, 127939), (2611, 96187), (4459, 56323), (4849, 51793), (7399, 33943), (13741, 18277)]