21223935

素因数分解:

$3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{4327}}^1$

素因数の和:4447

約数の個数: 24

約数和(自身を含む): 37134240

約数和(自身を除く): 15910305

約数列:

[1, 3, 5, 9, 15, 45, 109, 327, 545, 981, 1635, 4327, 4905, 12981, 21635, 38943, 64905, 194715, 471643, 1414929, 2358215, 4244787, 7074645, 21223935]

約数ペア:

[(1, 21223935), (3, 7074645), (5, 4244787), (9, 2358215), (15, 1414929), (45, 471643), (109, 194715), (327, 64905), (545, 38943), (981, 21635), (1635, 12981), (4327, 4905)]