398437269

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{157}}^1\times {\mathrm{191}}^1$

素因数の和:497

約数の個数: 32

約数和(自身を含む): 555270144

約数和(自身を除く): 156832875

約数列:

[1, 3, 43, 103, 129, 157, 191, 309, 471, 573, 4429, 6751, 8213, 13287, 16171, 19673, 20253, 24639, 29987, 48513, 59019, 89961, 695353, 845939, 1289441, 2086059, 2537817, 3088661, 3868323, 9265983, 132812423, 398437269]

約数ペア:

[(1, 398437269), (3, 132812423), (43, 9265983), (103, 3868323), (129, 3088661), (157, 2537817), (191, 2086059), (309, 1289441), (471, 845939), (573, 695353), (4429, 89961), (6751, 59019), (8213, 48513), (13287, 29987), (16171, 24639), (19673, 20253)]