21839715

素因数分解:

$3^2\times 5^1\times {\mathrm{317}}^1\times {\mathrm{1531}}^1$

素因数の和:1859

約数の個数: 24

約数和(自身を含む): 37999728

約数和(自身を除く): 16160013

約数列:

[1, 3, 5, 9, 15, 45, 317, 951, 1531, 1585, 2853, 4593, 4755, 7655, 13779, 14265, 22965, 68895, 485327, 1455981, 2426635, 4367943, 7279905, 21839715]

約数ペア:

[(1, 21839715), (3, 7279905), (5, 4367943), (9, 2426635), (15, 1455981), (45, 485327), (317, 68895), (951, 22965), (1531, 14265), (1585, 13779), (2853, 7655), (4593, 4755)]