22005905

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{97}}^1\times {\mathrm{157}}^1$

素因数の和:293

約数の個数: 24

約数和(自身を含む): 28521528

約数和(自身を除く): 6515623

約数列:

[1, 5, 17, 85, 97, 157, 289, 485, 785, 1445, 1649, 2669, 8245, 13345, 15229, 28033, 45373, 76145, 140165, 226865, 258893, 1294465, 4401181, 22005905]

約数ペア:

[(1, 22005905), (5, 4401181), (17, 1294465), (85, 258893), (97, 226865), (157, 140165), (289, 76145), (485, 45373), (785, 28033), (1445, 15229), (1649, 13345), (2669, 8245)]