18519995

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{4013}}^1$

素因数の和:4102

約数の個数: 16

約数和(自身を含む): 24276672

約数和(自身を除く): 5756677

約数列:

[1, 5, 13, 65, 71, 355, 923, 4013, 4615, 20065, 52169, 260845, 284923, 1424615, 3703999, 18519995]

約数ペア:

[(1, 18519995), (5, 3703999), (13, 1424615), (65, 284923), (71, 260845), (355, 52169), (923, 20065), (4013, 4615)]