18869175

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{6451}}^1$

素因数の和:6480

約数の個数: 36

約数和(自身を含む): 36402184

約数和(自身を除く): 17533009

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 117, 195, 225, 325, 585, 975, 2925, 6451, 19353, 32255, 58059, 83863, 96765, 161275, 251589, 290295, 419315, 483825, 754767, 1257945, 1451475, 2096575, 3773835, 6289725, 18869175]

約数ペア:

[(1, 18869175), (3, 6289725), (5, 3773835), (9, 2096575), (13, 1451475), (15, 1257945), (25, 754767), (39, 483825), (45, 419315), (65, 290295), (75, 251589), (117, 161275), (195, 96765), (225, 83863), (325, 58059), (585, 32255), (975, 19353), (2925, 6451)]