21896925

素因数分解:

$3^1\times 5^2\times {\mathrm{281}}^1\times {\mathrm{1039}}^1$

素因数の和:1333

約数の個数: 24

約数和(自身を含む): 36366720

約数和(自身を除く): 14469795

約数列:

[1, 3, 5, 15, 25, 75, 281, 843, 1039, 1405, 3117, 4215, 5195, 7025, 15585, 21075, 25975, 77925, 291959, 875877, 1459795, 4379385, 7298975, 21896925]

約数ペア:

[(1, 21896925), (3, 7298975), (5, 4379385), (15, 1459795), (25, 875877), (75, 291959), (281, 77925), (843, 25975), (1039, 21075), (1405, 15585), (3117, 7025), (4215, 5195)]