81816657

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{37}}^1\times {\mathrm{59}}^1$

素因数の和:174

約数の個数: 48

約数和(自身を含む): 126786240

約数和(自身を除く): 44969583

約数列:

[1, 3, 13, 31, 37, 39, 59, 93, 111, 177, 403, 481, 767, 961, 1147, 1209, 1443, 1829, 2183, 2301, 2883, 3441, 5487, 6549, 12493, 14911, 23777, 28379, 35557, 37479, 44733, 56699, 67673, 71331, 85137, 106671, 170097, 203019, 462241, 737087, 879749, 1386723, 2097863, 2211261, 2639247, 6293589, 27272219, 81816657]

約数ペア:

[(1, 81816657), (3, 27272219), (13, 6293589), (31, 2639247), (37, 2211261), (39, 2097863), (59, 1386723), (93, 879749), (111, 737087), (177, 462241), (403, 203019), (481, 170097), (767, 106671), (961, 85137), (1147, 71331), (1209, 67673), (1443, 56699), (1829, 44733), (2183, 37479), (2301, 35557), (2883, 28379), (3441, 23777), (5487, 14911), (6549, 12493)]