20406105

素因数分解:

$3^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{4013}}^1$

素因数の和:4137

約数の個数: 24

約数和(自身を含む): 35692488

約数和(自身を除く): 15286383

約数列:

[1, 3, 5, 9, 15, 45, 113, 339, 565, 1017, 1695, 4013, 5085, 12039, 20065, 36117, 60195, 180585, 453469, 1360407, 2267345, 4081221, 6802035, 20406105]

約数ペア:

[(1, 20406105), (3, 6802035), (5, 4081221), (9, 2267345), (15, 1360407), (45, 453469), (113, 180585), (339, 60195), (565, 36117), (1017, 20065), (1695, 12039), (4013, 5085)]