21707220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{361787}}^1$

素因数の和:361799

約数の個数: 24

約数和(自身を含む): 60780384

約数和(自身を除く): 39073164

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 361787, 723574, 1085361, 1447148, 1808935, 2170722, 3617870, 4341444, 5426805, 7235740, 10853610, 21707220]

約数ペア:

[(1, 21707220), (2, 10853610), (3, 7235740), (4, 5426805), (5, 4341444), (6, 3617870), (10, 2170722), (12, 1808935), (15, 1447148), (20, 1085361), (30, 723574), (60, 361787)]