21801782255

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{821}}^1\times {\mathrm{16649}}^1$

素因数の和:17515

約数の個数: 32

約数和(自身を含む): 29562408000

約数和(自身を除く): 7760625745

約数列:

[1, 5, 11, 29, 55, 145, 319, 821, 1595, 4105, 9031, 16649, 23809, 45155, 83245, 119045, 183139, 261899, 482821, 915695, 1309495, 2414105, 5311031, 13668829, 26555155, 68344145, 150357119, 396396041, 751785595, 1981980205, 4360356451, 21801782255]

約数ペア:

[(1, 21801782255), (5, 4360356451), (11, 1981980205), (29, 751785595), (55, 396396041), (145, 150357119), (319, 68344145), (821, 26555155), (1595, 13668829), (4105, 5311031), (9031, 2414105), (16649, 1309495), (23809, 915695), (45155, 482821), (83245, 261899), (119045, 183139)]