20390601

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{857}}^1$

素因数の和:981

約数の個数: 32

約数和(自身を含む): 34265088

約数和(自身を除く): 13874487

約数列:

[1, 3, 7, 11, 21, 33, 77, 103, 231, 309, 721, 857, 1133, 2163, 2571, 3399, 5999, 7931, 9427, 17997, 23793, 28281, 65989, 88271, 197967, 264813, 617897, 970981, 1853691, 2912943, 6796867, 20390601]

約数ペア:

[(1, 20390601), (3, 6796867), (7, 2912943), (11, 1853691), (21, 970981), (33, 617897), (77, 264813), (103, 197967), (231, 88271), (309, 65989), (721, 28281), (857, 23793), (1133, 17997), (2163, 9427), (2571, 7931), (3399, 5999)]