18900135

素因数分解:

$3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{2029}}^1$

素因数の和:2069

約数の個数: 40

約数和(自身を含む): 35370720

約数和(自身を除く): 16470585

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 81, 115, 135, 207, 345, 405, 621, 1035, 1863, 2029, 3105, 6087, 9315, 10145, 18261, 30435, 46667, 54783, 91305, 140001, 164349, 233335, 273915, 420003, 700005, 821745, 1260009, 2100015, 3780027, 6300045, 18900135]

約数ペア:

[(1, 18900135), (3, 6300045), (5, 3780027), (9, 2100015), (15, 1260009), (23, 821745), (27, 700005), (45, 420003), (69, 273915), (81, 233335), (115, 164349), (135, 140001), (207, 91305), (345, 54783), (405, 46667), (621, 30435), (1035, 18261), (1863, 10145), (2029, 9315), (3105, 6087)]