21323715

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{311}}^1\times {\mathrm{653}}^1$

素因数の和:979

約数の個数: 32

約数和(自身を含む): 39177216

約数和(自身を除く): 17853501

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 311, 653, 933, 1555, 1959, 2177, 3265, 4571, 4665, 6531, 9795, 10885, 13713, 22855, 32655, 68565, 203083, 609249, 1015415, 1421581, 3046245, 4264743, 7107905, 21323715]

約数ペア:

[(1, 21323715), (3, 7107905), (5, 4264743), (7, 3046245), (15, 1421581), (21, 1015415), (35, 609249), (105, 203083), (311, 68565), (653, 32655), (933, 22855), (1555, 13713), (1959, 10885), (2177, 9795), (3265, 6531), (4571, 4665)]