20689594

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{3917}}^1$

素因数の和:4077

約数の個数: 16

約数和(自身を含む): 32911200

約数和(自身を除く): 12221606

約数列:

[1, 2, 19, 38, 139, 278, 2641, 3917, 5282, 7834, 74423, 148846, 544463, 1088926, 10344797, 20689594]

約数ペア:

[(1, 20689594), (2, 10344797), (19, 1088926), (38, 544463), (139, 148846), (278, 74423), (2641, 7834), (3917, 5282)]