28111629

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{89}}^2$

素因数の和:214

約数の個数: 36

約数和(自身を含む): 46912416

約数和(自身を除く): 18800787

約数列:

[1, 3, 7, 13, 21, 39, 89, 91, 169, 267, 273, 507, 623, 1157, 1183, 1869, 3471, 3549, 7921, 8099, 15041, 23763, 24297, 45123, 55447, 102973, 105287, 166341, 308919, 315861, 720811, 1338649, 2162433, 4015947, 9370543, 28111629]

約数ペア:

[(1, 28111629), (3, 9370543), (7, 4015947), (13, 2162433), (21, 1338649), (39, 720811), (89, 315861), (91, 308919), (169, 166341), (267, 105287), (273, 102973), (507, 55447), (623, 45123), (1157, 24297), (1183, 23763), (1869, 15041), (3471, 8099), (3549, 7921)]