19702474

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{8867}}^1$

素因数の和:8981

約数の個数: 16

約数和(自身を含む): 32563296

約数和(自身を除く): 12860822

約数列:

[1, 2, 11, 22, 101, 202, 1111, 2222, 8867, 17734, 97537, 195074, 895567, 1791134, 9851237, 19702474]

約数ペア:

[(1, 19702474), (2, 9851237), (11, 1791134), (22, 895567), (101, 195074), (202, 97537), (1111, 17734), (2222, 8867)]