21608288

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{409}}^1$

素因数の和:559

約数の個数: 48

約数和(自身を含む): 46287360

約数和(自身を除く): 24679072

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 127, 208, 254, 409, 416, 508, 818, 1016, 1636, 1651, 2032, 3272, 3302, 4064, 5317, 6544, 6604, 10634, 13088, 13208, 21268, 26416, 42536, 51943, 52832, 85072, 103886, 170144, 207772, 415544, 675259, 831088, 1350518, 1662176, 2701036, 5402072, 10804144, 21608288]

約数ペア:

[(1, 21608288), (2, 10804144), (4, 5402072), (8, 2701036), (13, 1662176), (16, 1350518), (26, 831088), (32, 675259), (52, 415544), (104, 207772), (127, 170144), (208, 103886), (254, 85072), (409, 52832), (416, 51943), (508, 42536), (818, 26416), (1016, 21268), (1636, 13208), (1651, 13088), (2032, 10634), (3272, 6604), (3302, 6544), (4064, 5317)]