21153875

素因数分解:

$5^3\times {\mathrm{229}}^1\times {\mathrm{739}}^1$

素因数の和:983

約数の個数: 16

約数和(自身を含む): 26551200

約数和(自身を除く): 5397325

約数列:

[1, 5, 25, 125, 229, 739, 1145, 3695, 5725, 18475, 28625, 92375, 169231, 846155, 4230775, 21153875]

約数ペア:

[(1, 21153875), (5, 4230775), (25, 846155), (125, 169231), (229, 92375), (739, 28625), (1145, 18475), (3695, 5725)]