18971804

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{4231}}^1$

素因数の和:4313

約数の個数: 24

約数和(自身を含む): 35548800

約数和(自身を除く): 16576996

約数列:

[1, 2, 4, 19, 38, 59, 76, 118, 236, 1121, 2242, 4231, 4484, 8462, 16924, 80389, 160778, 249629, 321556, 499258, 998516, 4742951, 9485902, 18971804]

約数ペア:

[(1, 18971804), (2, 9485902), (4, 4742951), (19, 998516), (38, 499258), (59, 321556), (76, 249629), (118, 160778), (236, 80389), (1121, 16924), (2242, 8462), (4231, 4484)]