520016931

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{1381}}^1$

素因数の和:1576

約数の個数: 48

約数和(自身を含む): 885364480

約数和(自身を除く): 365347549

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 139, 301, 387, 417, 903, 973, 1251, 1381, 2709, 2919, 4143, 5977, 8757, 9667, 12429, 17931, 29001, 41839, 53793, 59383, 87003, 125517, 178149, 191959, 376551, 415681, 534447, 575877, 1247043, 1343713, 1727631, 3741129, 4031139, 8254237, 12093417, 24762711, 57779659, 74288133, 173338977, 520016931]

約数ペア:

[(1, 520016931), (3, 173338977), (7, 74288133), (9, 57779659), (21, 24762711), (43, 12093417), (63, 8254237), (129, 4031139), (139, 3741129), (301, 1727631), (387, 1343713), (417, 1247043), (903, 575877), (973, 534447), (1251, 415681), (1381, 376551), (2709, 191959), (2919, 178149), (4143, 125517), (5977, 87003), (8757, 59383), (9667, 53793), (12429, 41839), (17931, 29001)]