18900795

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{421}}^1$

素因数の和:543

約数の個数: 32

約数和(自身を含む): 31477824

約数和(自身を除く): 12577029

約数列:

[1, 3, 5, 15, 41, 73, 123, 205, 219, 365, 421, 615, 1095, 1263, 2105, 2993, 6315, 8979, 14965, 17261, 30733, 44895, 51783, 86305, 92199, 153665, 258915, 460995, 1260053, 3780159, 6300265, 18900795]

約数ペア:

[(1, 18900795), (3, 6300265), (5, 3780159), (15, 1260053), (41, 460995), (73, 258915), (123, 153665), (205, 92199), (219, 86305), (365, 51783), (421, 44895), (615, 30733), (1095, 17261), (1263, 14965), (2105, 8979), (2993, 6315)]