21638786

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{431}}^1\times {\mathrm{1931}}^1$

素因数の和:2377

約数の個数: 16

約数和(自身を含む): 35054208

約数和(自身を除く): 13415422

約数列:

[1, 2, 13, 26, 431, 862, 1931, 3862, 5603, 11206, 25103, 50206, 832261, 1664522, 10819393, 21638786]

約数ペア:

[(1, 21638786), (2, 10819393), (13, 1664522), (26, 832261), (431, 50206), (862, 25103), (1931, 11206), (3862, 5603)]