20544867

素因数分解:

$3^3\times 7^2\times {\mathrm{53}}^1\times {\mathrm{293}}^1$

素因数の和:369

約数の個数: 48

約数和(自身を含む): 36197280

約数和(自身を除く): 15652413

約数列:

[1, 3, 7, 9, 21, 27, 49, 53, 63, 147, 159, 189, 293, 371, 441, 477, 879, 1113, 1323, 1431, 2051, 2597, 2637, 3339, 6153, 7791, 7911, 10017, 14357, 15529, 18459, 23373, 43071, 46587, 55377, 70119, 108703, 129213, 139761, 326109, 387639, 419283, 760921, 978327, 2282763, 2934981, 6848289, 20544867]

約数ペア:

[(1, 20544867), (3, 6848289), (7, 2934981), (9, 2282763), (21, 978327), (27, 760921), (49, 419283), (53, 387639), (63, 326109), (147, 139761), (159, 129213), (189, 108703), (293, 70119), (371, 55377), (441, 46587), (477, 43071), (879, 23373), (1113, 18459), (1323, 15529), (1431, 14357), (2051, 10017), (2597, 7911), (2637, 7791), (3339, 6153)]