19804407

素因数分解:

$3^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{4229}}^1$

素因数の和:4462

約数の個数: 16

約数和(自身を含む): 30320640

約数和(自身を除く): 10516233

約数列:

[1, 3, 7, 21, 223, 669, 1561, 4229, 4683, 12687, 29603, 88809, 943067, 2829201, 6601469, 19804407]

約数ペア:

[(1, 19804407), (3, 6601469), (7, 2829201), (21, 943067), (223, 88809), (669, 29603), (1561, 12687), (4229, 4683)]