21541710

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{16699}}^1$

素因数の和:16752

約数の個数: 32

約数和(自身を含む): 52905600

約数和(自身を除く): 31363890

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 43, 86, 129, 215, 258, 430, 645, 1290, 16699, 33398, 50097, 83495, 100194, 166990, 250485, 500970, 718057, 1436114, 2154171, 3590285, 4308342, 7180570, 10770855, 21541710]

約数ペア:

[(1, 21541710), (2, 10770855), (3, 7180570), (5, 4308342), (6, 3590285), (10, 2154171), (15, 1436114), (30, 718057), (43, 500970), (86, 250485), (129, 166990), (215, 100194), (258, 83495), (430, 50097), (645, 33398), (1290, 16699)]