20161323

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{239}}^1$

素因数の和:368

約数の個数: 48

約数和(自身を含む): 36341760

約数和(自身を除く): 16180437

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 103, 117, 239, 273, 309, 717, 721, 819, 927, 1339, 1673, 2151, 2163, 3107, 4017, 5019, 6489, 9321, 9373, 12051, 15057, 21749, 24617, 27963, 28119, 65247, 73851, 84357, 172319, 195741, 221553, 320021, 516957, 960063, 1550871, 2240147, 2880189, 6720441, 20161323]

約数ペア:

[(1, 20161323), (3, 6720441), (7, 2880189), (9, 2240147), (13, 1550871), (21, 960063), (39, 516957), (63, 320021), (91, 221553), (103, 195741), (117, 172319), (239, 84357), (273, 73851), (309, 65247), (717, 28119), (721, 27963), (819, 24617), (927, 21749), (1339, 15057), (1673, 12051), (2151, 9373), (2163, 9321), (3107, 6489), (4017, 5019)]