19887998

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{599}}^1\times {\mathrm{1277}}^1$

素因数の和:1891

約数の個数: 16

約数和(自身を含む): 32205600

約数和(自身を除く): 12317602

約数列:

[1, 2, 13, 26, 599, 1198, 1277, 2554, 7787, 15574, 16601, 33202, 764923, 1529846, 9943999, 19887998]

約数ペア:

[(1, 19887998), (2, 9943999), (13, 1529846), (26, 764923), (599, 33202), (1198, 16601), (1277, 15574), (2554, 7787)]