18643079

素因数分解:

$7^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1$

素因数の和:184

約数の個数: 32

約数和(自身を含む): 24259200

約数和(自身を除く): 5616121

約数列:

[1, 7, 13, 37, 49, 91, 113, 259, 343, 481, 637, 791, 1469, 1813, 3367, 4181, 4459, 5537, 10283, 12691, 23569, 29267, 38759, 54353, 71981, 164983, 204869, 380471, 503867, 1434083, 2663297, 18643079]

約数ペア:

[(1, 18643079), (7, 2663297), (13, 1434083), (37, 503867), (49, 380471), (91, 204869), (113, 164983), (259, 71981), (343, 54353), (481, 38759), (637, 29267), (791, 23569), (1469, 12691), (1813, 10283), (3367, 5537), (4181, 4459)]