21336654

素因数分解:

$2^1\times 3^1\times {\mathrm{101}}^1\times {\mathrm{137}}^1\times {\mathrm{257}}^1$

素因数の和:500

約数の個数: 32

約数和(自身を含む): 43579296

約数和(自身を除く): 22242642

約数列:

[1, 2, 3, 6, 101, 137, 202, 257, 274, 303, 411, 514, 606, 771, 822, 1542, 13837, 25957, 27674, 35209, 41511, 51914, 70418, 77871, 83022, 105627, 155742, 211254, 3556109, 7112218, 10668327, 21336654]

約数ペア:

[(1, 21336654), (2, 10668327), (3, 7112218), (6, 3556109), (101, 211254), (137, 155742), (202, 105627), (257, 83022), (274, 77871), (303, 70418), (411, 51914), (514, 41511), (606, 35209), (771, 27674), (822, 25957), (1542, 13837)]