21602284

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{4861}}^1$

素因数の和:4977

約数の個数: 24

約数和(自身を含む): 41657616

約数和(自身を除く): 20055332

約数列:

[1, 2, 4, 11, 22, 44, 101, 202, 404, 1111, 2222, 4444, 4861, 9722, 19444, 53471, 106942, 213884, 490961, 981922, 1963844, 5400571, 10801142, 21602284]

約数ペア:

[(1, 21602284), (2, 10801142), (4, 5400571), (11, 1963844), (22, 981922), (44, 490961), (101, 213884), (202, 106942), (404, 53471), (1111, 19444), (2222, 9722), (4444, 4861)]