19422436

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{40129}}^1$

素因数の和:40155

約数の個数: 18

約数和(自身を含む): 37361030

約数和(自身を除く): 17938594

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 40129, 80258, 160516, 441419, 882838, 1765676, 4855609, 9711218, 19422436]

約数ペア:

[(1, 19422436), (2, 9711218), (4, 4855609), (11, 1765676), (22, 882838), (44, 441419), (121, 160516), (242, 80258), (484, 40129)]