520021671

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{179}}^1\times {\mathrm{457}}^1$

素因数の和:815

約数の個数: 32

約数和(自身を含む): 757128960

約数和(自身を除く): 237107289

約数列:

[1, 3, 13, 39, 163, 179, 457, 489, 537, 1371, 2119, 2327, 5941, 6357, 6981, 17823, 29177, 74491, 81803, 87531, 223473, 245409, 379301, 968383, 1063439, 1137903, 2905149, 3190317, 13333889, 40001667, 173340557, 520021671]

約数ペア:

[(1, 520021671), (3, 173340557), (13, 40001667), (39, 13333889), (163, 3190317), (179, 2905149), (457, 1137903), (489, 1063439), (537, 968383), (1371, 379301), (2119, 245409), (2327, 223473), (5941, 87531), (6357, 81803), (6981, 74491), (17823, 29177)]