20884544

素因数分解:

$2^6\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1$

素因数の和:243

約数の個数: 56

約数和(自身を含む): 43452288

約数和(自身を除く): 22567744

約数列:

[1, 2, 4, 8, 16, 32, 47, 53, 64, 94, 106, 131, 188, 212, 262, 376, 424, 524, 752, 848, 1048, 1504, 1696, 2096, 2491, 3008, 3392, 4192, 4982, 6157, 6943, 8384, 9964, 12314, 13886, 19928, 24628, 27772, 39856, 49256, 55544, 79712, 98512, 111088, 159424, 197024, 222176, 326321, 394048, 444352, 652642, 1305284, 2610568, 5221136, 10442272, 20884544]

約数ペア:

[(1, 20884544), (2, 10442272), (4, 5221136), (8, 2610568), (16, 1305284), (32, 652642), (47, 444352), (53, 394048), (64, 326321), (94, 222176), (106, 197024), (131, 159424), (188, 111088), (212, 98512), (262, 79712), (376, 55544), (424, 49256), (524, 39856), (752, 27772), (848, 24628), (1048, 19928), (1504, 13886), (1696, 12314), (2096, 9964), (2491, 8384), (3008, 6943), (3392, 6157), (4192, 4982)]