21055425

素因数分解:

$3^1\times 5^2\times {\mathrm{383}}^1\times {\mathrm{733}}^1$

素因数の和:1129

約数の個数: 24

約数和(自身を含む): 34950144

約数和(自身を除く): 13894719

約数列:

[1, 3, 5, 15, 25, 75, 383, 733, 1149, 1915, 2199, 3665, 5745, 9575, 10995, 18325, 28725, 54975, 280739, 842217, 1403695, 4211085, 7018475, 21055425]

約数ペア:

[(1, 21055425), (3, 7018475), (5, 4211085), (15, 1403695), (25, 842217), (75, 280739), (383, 54975), (733, 28725), (1149, 18325), (1915, 10995), (2199, 9575), (3665, 5745)]