2176521985

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{431}}^1\times {\mathrm{491}}^1$

素因数の和:966

約数の個数: 48

約数和(自身を含む): 3052982016

約数和(自身を除く): 876460031

約数列:

[1, 5, 11, 17, 55, 85, 121, 187, 431, 491, 605, 935, 2057, 2155, 2455, 4741, 5401, 7327, 8347, 10285, 23705, 27005, 36635, 41735, 52151, 59411, 80597, 91817, 211621, 260755, 297055, 402985, 459085, 886567, 1009987, 1058105, 2327831, 3597557, 4432835, 5049935, 11639155, 17987785, 25606141, 39573127, 128030705, 197865635, 435304397, 2176521985]

約数ペア:

[(1, 2176521985), (5, 435304397), (11, 197865635), (17, 128030705), (55, 39573127), (85, 25606141), (121, 17987785), (187, 11639155), (431, 5049935), (491, 4432835), (605, 3597557), (935, 2327831), (2057, 1058105), (2155, 1009987), (2455, 886567), (4741, 459085), (5401, 402985), (7327, 297055), (8347, 260755), (10285, 211621), (23705, 91817), (27005, 80597), (36635, 59411), (41735, 52151)]