21987870

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{463}}^1\times {\mathrm{1583}}^1$

素因数の和:2056

約数の個数: 32

約数和(自身を含む): 52918272

約数和(自身を除く): 30930402

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 463, 926, 1389, 1583, 2315, 2778, 3166, 4630, 4749, 6945, 7915, 9498, 13890, 15830, 23745, 47490, 732929, 1465858, 2198787, 3664645, 4397574, 7329290, 10993935, 21987870]

約数ペア:

[(1, 21987870), (2, 10993935), (3, 7329290), (5, 4397574), (6, 3664645), (10, 2198787), (15, 1465858), (30, 732929), (463, 47490), (926, 23745), (1389, 15830), (1583, 13890), (2315, 9498), (2778, 7915), (3166, 6945), (4630, 4749)]