21489716

素因数分解:

$2^2\times {\mathrm{47}}^1\times {\mathrm{151}}^1\times {\mathrm{757}}^1$

素因数の和:959

約数の個数: 24

約数和(自身を含む): 38712576

約数和(自身を除く): 17222860

約数列:

[1, 2, 4, 47, 94, 151, 188, 302, 604, 757, 1514, 3028, 7097, 14194, 28388, 35579, 71158, 114307, 142316, 228614, 457228, 5372429, 10744858, 21489716]

約数ペア:

[(1, 21489716), (2, 10744858), (4, 5372429), (47, 457228), (94, 228614), (151, 142316), (188, 114307), (302, 71158), (604, 35579), (757, 28388), (1514, 14194), (3028, 7097)]