12878996

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{857}}^1$

素因数の和:908

約数の個数: 36

約数和(自身を含む): 25813788

約数和(自身を除く): 12934792

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 221, 289, 442, 578, 857, 884, 1156, 1714, 3428, 3757, 7514, 11141, 14569, 15028, 22282, 29138, 44564, 58276, 189397, 247673, 378794, 495346, 757588, 990692, 3219749, 6439498, 12878996]

約数ペア:

[(1, 12878996), (2, 6439498), (4, 3219749), (13, 990692), (17, 757588), (26, 495346), (34, 378794), (52, 247673), (68, 189397), (221, 58276), (289, 44564), (442, 29138), (578, 22282), (857, 15028), (884, 14569), (1156, 11141), (1714, 7514), (3428, 3757)]