18984745

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{4001}}^1$

素因数の和:4092

約数の個数: 16

約数和(自身を含む): 24876432

約数和(自身を除く): 5891687

約数列:

[1, 5, 13, 65, 73, 365, 949, 4001, 4745, 20005, 52013, 260065, 292073, 1460365, 3796949, 18984745]

約数ペア:

[(1, 18984745), (5, 3796949), (13, 1460365), (65, 292073), (73, 260065), (365, 52013), (949, 20005), (4001, 4745)]