20129018

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{5821}}^1$

素因数の和:5862

約数の個数: 32

約数和(自身を含む): 39123840

約数和(自身を除く): 18994822

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 91, 133, 182, 247, 266, 494, 1729, 3458, 5821, 11642, 40747, 75673, 81494, 110599, 151346, 221198, 529711, 774193, 1059422, 1437787, 1548386, 2875574, 10064509, 20129018]

約数ペア:

[(1, 20129018), (2, 10064509), (7, 2875574), (13, 1548386), (14, 1437787), (19, 1059422), (26, 774193), (38, 529711), (91, 221198), (133, 151346), (182, 110599), (247, 81494), (266, 75673), (494, 40747), (1729, 11642), (3458, 5821)]