21445618

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{211}}^1\times {\mathrm{571}}^1$

素因数の和:873

約数の個数: 16

約数和(自身を含む): 32741280

約数和(自身を除く): 11295662

約数列:

[1, 2, 89, 178, 211, 422, 571, 1142, 18779, 37558, 50819, 101638, 120481, 240962, 10722809, 21445618]

約数ペア:

[(1, 21445618), (2, 10722809), (89, 240962), (178, 120481), (211, 101638), (422, 50819), (571, 37558), (1142, 18779)]