21102520

素因数分解:

$2^3\times 5^1\times {\mathrm{527563}}^1$

素因数の和:527574

約数の個数: 16

約数和(自身を含む): 47480760

約数和(自身を除く): 26378240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 527563, 1055126, 2110252, 2637815, 4220504, 5275630, 10551260, 21102520]

約数ペア:

[(1, 21102520), (2, 10551260), (4, 5275630), (5, 4220504), (8, 2637815), (10, 2110252), (20, 1055126), (40, 527563)]