21550611

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{317}}^1$

素因数の和:411

約数の個数: 32

約数和(自身を含む): 32237568

約数和(自身を除く): 10686957

約数列:

[1, 3, 17, 31, 43, 51, 93, 129, 317, 527, 731, 951, 1333, 1581, 2193, 3999, 5389, 9827, 13631, 16167, 22661, 29481, 40893, 67983, 167059, 231727, 422561, 501177, 695181, 1267683, 7183537, 21550611]

約数ペア:

[(1, 21550611), (3, 7183537), (17, 1267683), (31, 695181), (43, 501177), (51, 422561), (93, 231727), (129, 167059), (317, 67983), (527, 40893), (731, 29481), (951, 22661), (1333, 16167), (1581, 13631), (2193, 9827), (3999, 5389)]