20958426

素因数分解:

$2^1\times 3^4\times {\mathrm{53}}^1\times {\mathrm{2441}}^1$

素因数の和:2508

約数の個数: 40

約数和(自身を含む): 47868084

約数和(自身を除く): 26909658

約数列:

[1, 2, 3, 6, 9, 18, 27, 53, 54, 81, 106, 159, 162, 318, 477, 954, 1431, 2441, 2862, 4293, 4882, 7323, 8586, 14646, 21969, 43938, 65907, 129373, 131814, 197721, 258746, 388119, 395442, 776238, 1164357, 2328714, 3493071, 6986142, 10479213, 20958426]

約数ペア:

[(1, 20958426), (2, 10479213), (3, 6986142), (6, 3493071), (9, 2328714), (18, 1164357), (27, 776238), (53, 395442), (54, 388119), (81, 258746), (106, 197721), (159, 131814), (162, 129373), (318, 65907), (477, 43938), (954, 21969), (1431, 14646), (2441, 8586), (2862, 7323), (4293, 4882)]