21728625

素因数分解:

$3^1\times 5^3\times {\mathrm{57943}}^1$

素因数の和:57961

約数の個数: 16

約数和(自身を含む): 36157056

約数和(自身を除く): 14428431

約数列:

[1, 3, 5, 15, 25, 75, 125, 375, 57943, 173829, 289715, 869145, 1448575, 4345725, 7242875, 21728625]

約数ペア:

[(1, 21728625), (3, 7242875), (5, 4345725), (15, 1448575), (25, 869145), (75, 289715), (125, 173829), (375, 57943)]