20621133

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:218

約数の個数: 48

約数和(自身を含む): 34245120

約数和(自身を除く): 13623987

約数列:

[1, 3, 9, 13, 23, 39, 69, 79, 97, 117, 207, 237, 291, 299, 711, 873, 897, 1027, 1261, 1817, 2231, 2691, 3081, 3783, 5451, 6693, 7663, 9243, 11349, 16353, 20079, 22989, 23621, 29003, 68967, 70863, 87009, 99619, 176249, 212589, 261027, 298857, 528747, 896571, 1586241, 2291237, 6873711, 20621133]

約数ペア:

[(1, 20621133), (3, 6873711), (9, 2291237), (13, 1586241), (23, 896571), (39, 528747), (69, 298857), (79, 261027), (97, 212589), (117, 176249), (207, 99619), (237, 87009), (291, 70863), (299, 68967), (711, 29003), (873, 23621), (897, 22989), (1027, 20079), (1261, 16353), (1817, 11349), (2231, 9243), (2691, 7663), (3081, 6693), (3783, 5451)]