18729784

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{3359}}^1$

素因数の和:3423

約数の個数: 32

約数和(自身を含む): 38102400

約数和(自身を除く): 19372616

約数列:

[1, 2, 4, 8, 17, 34, 41, 68, 82, 136, 164, 328, 697, 1394, 2788, 3359, 5576, 6718, 13436, 26872, 57103, 114206, 137719, 228412, 275438, 456824, 550876, 1101752, 2341223, 4682446, 9364892, 18729784]

約数ペア:

[(1, 18729784), (2, 9364892), (4, 4682446), (8, 2341223), (17, 1101752), (34, 550876), (41, 456824), (68, 275438), (82, 228412), (136, 137719), (164, 114206), (328, 57103), (697, 26872), (1394, 13436), (2788, 6718), (3359, 5576)]