21267636

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{10487}}^1$

素因数の和:10520

約数の個数: 36

約数和(自身を含む): 53740512

約数和(自身を除く): 32472876

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 169, 338, 507, 676, 1014, 2028, 10487, 20974, 31461, 41948, 62922, 125844, 136331, 272662, 408993, 545324, 817986, 1635972, 1772303, 3544606, 5316909, 7089212, 10633818, 21267636]

約数ペア:

[(1, 21267636), (2, 10633818), (3, 7089212), (4, 5316909), (6, 3544606), (12, 1772303), (13, 1635972), (26, 817986), (39, 545324), (52, 408993), (78, 272662), (156, 136331), (169, 125844), (338, 62922), (507, 41948), (676, 31461), (1014, 20974), (2028, 10487)]