21029208

素因数分解:

$2^3\times 3^1\times {\mathrm{157}}^1\times {\mathrm{5581}}^1$

素因数の和:5747

約数の個数: 32

約数和(自身を含む): 52917360

約数和(自身を除く): 31888152

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 157, 314, 471, 628, 942, 1256, 1884, 3768, 5581, 11162, 16743, 22324, 33486, 44648, 66972, 133944, 876217, 1752434, 2628651, 3504868, 5257302, 7009736, 10514604, 21029208]

約数ペア:

[(1, 21029208), (2, 10514604), (3, 7009736), (4, 5257302), (6, 3504868), (8, 2628651), (12, 1752434), (24, 876217), (157, 133944), (314, 66972), (471, 44648), (628, 33486), (942, 22324), (1256, 16743), (1884, 11162), (3768, 5581)]