21952865

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{443}}^1$

素因数の和:529

約数の個数: 32

約数和(自身を含む): 31072896

約数和(自身を除く): 9120031

約数列:

[1, 5, 11, 17, 53, 55, 85, 187, 265, 443, 583, 901, 935, 2215, 2915, 4505, 4873, 7531, 9911, 23479, 24365, 37655, 49555, 82841, 117395, 258269, 399143, 414205, 1291345, 1995715, 4390573, 21952865]

約数ペア:

[(1, 21952865), (5, 4390573), (11, 1995715), (17, 1291345), (53, 414205), (55, 399143), (85, 258269), (187, 117395), (265, 82841), (443, 49555), (583, 37655), (901, 24365), (935, 23479), (2215, 9911), (2915, 7531), (4505, 4873)]