21187412

素因数分解:

$2^2\times {\mathrm{47}}^1\times {\mathrm{251}}^1\times {\mathrm{449}}^1$

素因数の和:751

約数の個数: 24

約数和(自身を含む): 38102400

約数和(自身を除く): 16914988

約数列:

[1, 2, 4, 47, 94, 188, 251, 449, 502, 898, 1004, 1796, 11797, 21103, 23594, 42206, 47188, 84412, 112699, 225398, 450796, 5296853, 10593706, 21187412]

約数ペア:

[(1, 21187412), (2, 10593706), (4, 5296853), (47, 450796), (94, 225398), (188, 112699), (251, 84412), (449, 47188), (502, 42206), (898, 23594), (1004, 21103), (1796, 11797)]