20914592

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{839}}^1$

素因数の和:909

約数の個数: 48

約数和(自身を含む): 44452800

約数和(自身を除く): 23538208

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 41, 76, 82, 152, 164, 304, 328, 608, 656, 779, 839, 1312, 1558, 1678, 3116, 3356, 6232, 6712, 12464, 13424, 15941, 24928, 26848, 31882, 34399, 63764, 68798, 127528, 137596, 255056, 275192, 510112, 550384, 653581, 1100768, 1307162, 2614324, 5228648, 10457296, 20914592]

約数ペア:

[(1, 20914592), (2, 10457296), (4, 5228648), (8, 2614324), (16, 1307162), (19, 1100768), (32, 653581), (38, 550384), (41, 510112), (76, 275192), (82, 255056), (152, 137596), (164, 127528), (304, 68798), (328, 63764), (608, 34399), (656, 31882), (779, 26848), (839, 24928), (1312, 15941), (1558, 13424), (1678, 12464), (3116, 6712), (3356, 6232)]