21671097

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{233}}^1$

素因数の和:389

約数の個数: 32

約数和(自身を含む): 34265088

約数和(自身を除く): 12593991

約数列:

[1, 3, 7, 21, 43, 103, 129, 233, 301, 309, 699, 721, 903, 1631, 2163, 4429, 4893, 10019, 13287, 23999, 30057, 31003, 70133, 71997, 93009, 167993, 210399, 503979, 1031957, 3095871, 7223699, 21671097]

約数ペア:

[(1, 21671097), (3, 7223699), (7, 3095871), (21, 1031957), (43, 503979), (103, 210399), (129, 167993), (233, 93009), (301, 71997), (309, 70133), (699, 31003), (721, 30057), (903, 23999), (1631, 13287), (2163, 10019), (4429, 4893)]