21178049285

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{1367}}^1\times {\mathrm{1879}}^1$

素因数の和:3365

約数の個数: 32

約数和(自身を含む): 27220354560

約数和(自身を除く): 6042305275

約数列:

[1, 5, 17, 85, 97, 485, 1367, 1649, 1879, 6835, 8245, 9395, 23239, 31943, 116195, 132599, 159715, 182263, 662995, 911315, 2254183, 2568593, 3098471, 11270915, 12842965, 15492355, 43666081, 218330405, 249153521, 1245767605, 4235609857, 21178049285]

約数ペア:

[(1, 21178049285), (5, 4235609857), (17, 1245767605), (85, 249153521), (97, 218330405), (485, 43666081), (1367, 15492355), (1649, 12842965), (1879, 11270915), (6835, 3098471), (8245, 2568593), (9395, 2254183), (23239, 911315), (31943, 662995), (116195, 182263), (132599, 159715)]