20307998

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{8761}}^1$

素因数の和:8843

約数の個数: 16

約数和(自身を含む): 32594640

約数和(自身を除く): 12286642

約数列:

[1, 2, 19, 38, 61, 122, 1159, 2318, 8761, 17522, 166459, 332918, 534421, 1068842, 10153999, 20307998]

約数ペア:

[(1, 20307998), (2, 10153999), (19, 1068842), (38, 534421), (61, 332918), (122, 166459), (1159, 17522), (2318, 8761)]