18415395

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{307}}^1$

素因数の和:392

約数の個数: 48

約数和(自身を含む): 33825792

約数和(自身を除く): 15410397

約数列:

[1, 3, 5, 9, 15, 31, 43, 45, 93, 129, 155, 215, 279, 307, 387, 465, 645, 921, 1333, 1395, 1535, 1935, 2763, 3999, 4605, 6665, 9517, 11997, 13201, 13815, 19995, 28551, 39603, 47585, 59985, 66005, 85653, 118809, 142755, 198015, 409231, 428265, 594045, 1227693, 2046155, 3683079, 6138465, 18415395]

約数ペア:

[(1, 18415395), (3, 6138465), (5, 3683079), (9, 2046155), (15, 1227693), (31, 594045), (43, 428265), (45, 409231), (93, 198015), (129, 142755), (155, 118809), (215, 85653), (279, 66005), (307, 59985), (387, 47585), (465, 39603), (645, 28551), (921, 19995), (1333, 13815), (1395, 13201), (1535, 11997), (1935, 9517), (2763, 6665), (3999, 4605)]