21894903

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{191}}^1\times {\mathrm{271}}^1$

素因数の和:515

約数の個数: 24

約数和(自身を含む): 32587776

約数和(自身を除く): 10692873

約数列:

[1, 3, 9, 47, 141, 191, 271, 423, 573, 813, 1719, 2439, 8977, 12737, 26931, 38211, 51761, 80793, 114633, 155283, 465849, 2432767, 7298301, 21894903]

約数ペア:

[(1, 21894903), (3, 7298301), (9, 2432767), (47, 465849), (141, 155283), (191, 114633), (271, 80793), (423, 51761), (573, 38211), (813, 26931), (1719, 12737), (2439, 8977)]