20703609

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{787}}^1$

素因数の和:909

約数の個数: 24

約数和(自身を含む): 31141760

約数和(自身を除く): 10438151

約数列:

[1, 3, 9, 37, 79, 111, 237, 333, 711, 787, 2361, 2923, 7083, 8769, 26307, 29119, 62173, 87357, 186519, 262071, 559557, 2300401, 6901203, 20703609]

約数ペア:

[(1, 20703609), (3, 6901203), (9, 2300401), (37, 559557), (79, 262071), (111, 186519), (237, 87357), (333, 62173), (711, 29119), (787, 26307), (2361, 8769), (2923, 7083)]