21293315065

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{3301}}^1\times {\mathrm{6899}}^1$

素因数の和:10233

約数の個数: 32

約数和(自身を含む): 29527804800

約数和(自身を除く): 8234489735

約数列:

[1, 5, 11, 17, 55, 85, 187, 935, 3301, 6899, 16505, 34495, 36311, 56117, 75889, 117283, 181555, 280585, 379445, 586415, 617287, 1290113, 3086435, 6450565, 22773599, 113867995, 250509589, 387151183, 1252547945, 1935755915, 4258663013, 21293315065]

約数ペア:

[(1, 21293315065), (5, 4258663013), (11, 1935755915), (17, 1252547945), (55, 387151183), (85, 250509589), (187, 113867995), (935, 22773599), (3301, 6450565), (6899, 3086435), (16505, 1290113), (34495, 617287), (36311, 586415), (56117, 379445), (75889, 280585), (117283, 181555)]