221490291

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{156089}}^1$

素因数の和:156146

約数の個数: 16

約数和(自身を含む): 329662080

約数和(自身を除く): 108171789

約数列:

[1, 3, 11, 33, 43, 129, 473, 1419, 156089, 468267, 1716979, 5150937, 6711827, 20135481, 73830097, 221490291]

約数ペア:

[(1, 221490291), (3, 73830097), (11, 20135481), (33, 6711827), (43, 5150937), (129, 1716979), (473, 468267), (1419, 156089)]