21836920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{167}}^1\times {\mathrm{467}}^1$

素因数の和:652

約数の個数: 64

約数和(自身を含む): 56609280

約数和(自身を除く): 34772360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 167, 280, 334, 467, 668, 835, 934, 1169, 1336, 1670, 1868, 2335, 2338, 3269, 3340, 3736, 4670, 4676, 5845, 6538, 6680, 9340, 9352, 11690, 13076, 16345, 18680, 23380, 26152, 32690, 46760, 65380, 77989, 130760, 155978, 311956, 389945, 545923, 623912, 779890, 1091846, 1559780, 2183692, 2729615, 3119560, 4367384, 5459230, 10918460, 21836920]

約数ペア:

[(1, 21836920), (2, 10918460), (4, 5459230), (5, 4367384), (7, 3119560), (8, 2729615), (10, 2183692), (14, 1559780), (20, 1091846), (28, 779890), (35, 623912), (40, 545923), (56, 389945), (70, 311956), (140, 155978), (167, 130760), (280, 77989), (334, 65380), (467, 46760), (668, 32690), (835, 26152), (934, 23380), (1169, 18680), (1336, 16345), (1670, 13076), (1868, 11690), (2335, 9352), (2338, 9340), (3269, 6680), (3340, 6538), (3736, 5845), (4670, 4676)]