1871947

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{151}}^1$

素因数の和:199

約数の個数: 24

約数和(自身を含む): 2495232

約数和(自身を除く): 623285

約数列:

[1, 7, 11, 23, 49, 77, 151, 161, 253, 539, 1057, 1127, 1661, 1771, 3473, 7399, 11627, 12397, 24311, 38203, 81389, 170177, 267421, 1871947]

約数ペア:

[(1, 1871947), (7, 267421), (11, 170177), (23, 81389), (49, 38203), (77, 24311), (151, 12397), (161, 11627), (253, 7399), (539, 3473), (1057, 1771), (1127, 1661)]