20487584

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2897}}^1$

素因数の和:2937

約数の個数: 48

約数和(自身を含む): 46008648

約数和(自身を除く): 25521064

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 32, 34, 52, 68, 104, 136, 208, 221, 272, 416, 442, 544, 884, 1768, 2897, 3536, 5794, 7072, 11588, 23176, 37661, 46352, 49249, 75322, 92704, 98498, 150644, 196996, 301288, 393992, 602576, 640237, 787984, 1205152, 1280474, 1575968, 2560948, 5121896, 10243792, 20487584]

約数ペア:

[(1, 20487584), (2, 10243792), (4, 5121896), (8, 2560948), (13, 1575968), (16, 1280474), (17, 1205152), (26, 787984), (32, 640237), (34, 602576), (52, 393992), (68, 301288), (104, 196996), (136, 150644), (208, 98498), (221, 92704), (272, 75322), (416, 49249), (442, 46352), (544, 37661), (884, 23176), (1768, 11588), (2897, 7072), (3536, 5794)]