21847028

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{12791}}^1$

素因数の和:12863

約数の個数: 24

約数和(自身を含む): 44413824

約数和(自身を除く): 22566796

約数列:

[1, 2, 4, 7, 14, 28, 61, 122, 244, 427, 854, 1708, 12791, 25582, 51164, 89537, 179074, 358148, 780251, 1560502, 3121004, 5461757, 10923514, 21847028]

約数ペア:

[(1, 21847028), (2, 10923514), (4, 5461757), (7, 3121004), (14, 1560502), (28, 780251), (61, 358148), (122, 179074), (244, 89537), (427, 51164), (854, 25582), (1708, 12791)]