19863116

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{277}}^1$

素因数の和:498

約数の個数: 48

約数和(自身を含む): 43154496

約数和(自身を除く): 23291380

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 197, 277, 364, 394, 554, 788, 1108, 1379, 1939, 2561, 2758, 3601, 3878, 5122, 5516, 7202, 7756, 10244, 14404, 17927, 25207, 35854, 50414, 54569, 71708, 100828, 109138, 218276, 381983, 709397, 763966, 1418794, 1527932, 2837588, 4965779, 9931558, 19863116]

約数ペア:

[(1, 19863116), (2, 9931558), (4, 4965779), (7, 2837588), (13, 1527932), (14, 1418794), (26, 763966), (28, 709397), (52, 381983), (91, 218276), (182, 109138), (197, 100828), (277, 71708), (364, 54569), (394, 50414), (554, 35854), (788, 25207), (1108, 17927), (1379, 14404), (1939, 10244), (2561, 7756), (2758, 7202), (3601, 5516), (3878, 5122)]