20193415

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{571}}^1\times {\mathrm{643}}^1$

素因数の和:1230

約数の個数: 16

約数和(自身を含む): 26522496

約数和(自身を除く): 6329081

約数列:

[1, 5, 11, 55, 571, 643, 2855, 3215, 6281, 7073, 31405, 35365, 367153, 1835765, 4038683, 20193415]

約数ペア:

[(1, 20193415), (5, 4038683), (11, 1835765), (55, 367153), (571, 35365), (643, 31405), (2855, 7073), (3215, 6281)]