21126465

素因数分解:

$3^2\times 5^1\times {\mathrm{317}}^1\times {\mathrm{1481}}^1$

素因数の和:1809

約数の個数: 24

約数和(自身を含む): 36759528

約数和(自身を除く): 15633063

約数列:

[1, 3, 5, 9, 15, 45, 317, 951, 1481, 1585, 2853, 4443, 4755, 7405, 13329, 14265, 22215, 66645, 469477, 1408431, 2347385, 4225293, 7042155, 21126465]

約数ペア:

[(1, 21126465), (3, 7042155), (5, 4225293), (9, 2347385), (15, 1408431), (45, 469477), (317, 66645), (951, 22215), (1481, 14265), (1585, 13329), (2853, 7405), (4443, 4755)]