18715744

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{431}}^1$

素因数の和:523

約数の個数: 48

約数和(自身を含む): 39191040

約数和(自身を除く): 20475296

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 59, 92, 118, 184, 236, 368, 431, 472, 736, 862, 944, 1357, 1724, 1888, 2714, 3448, 5428, 6896, 9913, 10856, 13792, 19826, 21712, 25429, 39652, 43424, 50858, 79304, 101716, 158608, 203432, 317216, 406864, 584867, 813728, 1169734, 2339468, 4678936, 9357872, 18715744]

約数ペア:

[(1, 18715744), (2, 9357872), (4, 4678936), (8, 2339468), (16, 1169734), (23, 813728), (32, 584867), (46, 406864), (59, 317216), (92, 203432), (118, 158608), (184, 101716), (236, 79304), (368, 50858), (431, 43424), (472, 39652), (736, 25429), (862, 21712), (944, 19826), (1357, 13792), (1724, 10856), (1888, 9913), (2714, 6896), (3448, 5428)]