21890236

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{353}}^1\times {\mathrm{419}}^1$

素因数の和:813

約数の個数: 24

約数和(自身を含む): 39548880

約数和(自身を除く): 17658644

約数列:

[1, 2, 4, 37, 74, 148, 353, 419, 706, 838, 1412, 1676, 13061, 15503, 26122, 31006, 52244, 62012, 147907, 295814, 591628, 5472559, 10945118, 21890236]

約数ペア:

[(1, 21890236), (2, 10945118), (4, 5472559), (37, 591628), (74, 295814), (148, 147907), (353, 62012), (419, 52244), (706, 31006), (838, 26122), (1412, 15503), (1676, 13061)]