21073845

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1613}}^1$

素因数の和:1701

約数の個数: 32

約数和(自身を含む): 36876672

約数和(自身を除く): 15802827

約数列:

[1, 3, 5, 13, 15, 39, 65, 67, 195, 201, 335, 871, 1005, 1613, 2613, 4355, 4839, 8065, 13065, 20969, 24195, 62907, 104845, 108071, 314535, 324213, 540355, 1404923, 1621065, 4214769, 7024615, 21073845]

約数ペア:

[(1, 21073845), (3, 7024615), (5, 4214769), (13, 1621065), (15, 1404923), (39, 540355), (65, 324213), (67, 314535), (195, 108071), (201, 104845), (335, 62907), (871, 24195), (1005, 20969), (1613, 13065), (2613, 8065), (4355, 4839)]