647130237

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{661}}^1\times {\mathrm{1931}}^1$

素因数の和:2621

約数の個数: 24

約数和(自身を含む): 936216288

約数和(自身を除く): 289086051

約数列:

[1, 3, 13, 39, 169, 507, 661, 1931, 1983, 5793, 8593, 25103, 25779, 75309, 111709, 326339, 335127, 979017, 1276391, 3829173, 16593083, 49779249, 215710079, 647130237]

約数ペア:

[(1, 647130237), (3, 215710079), (13, 49779249), (39, 16593083), (169, 3829173), (507, 1276391), (661, 979017), (1931, 335127), (1983, 326339), (5793, 111709), (8593, 75309), (25103, 25779)]