18994969

素因数分解:

$7^1\times {\mathrm{67}}^1\times {\mathrm{101}}^1\times {\mathrm{401}}^1$

素因数の和:576

約数の個数: 16

約数和(自身を含む): 22306176

約数和(自身を除く): 3311207

約数列:

[1, 7, 67, 101, 401, 469, 707, 2807, 6767, 26867, 40501, 47369, 188069, 283507, 2713567, 18994969]

約数ペア:

[(1, 18994969), (7, 2713567), (67, 283507), (101, 188069), (401, 47369), (469, 40501), (707, 26867), (2807, 6767)]