21016938

素因数分解:

$2^1\times 3^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^2$

素因数の和:183

約数の個数: 48

約数和(自身を含む): 45349920

約数和(自身を除く): 24332982

約数列:

[1, 2, 3, 6, 29, 43, 53, 58, 86, 87, 106, 129, 159, 174, 258, 318, 1247, 1537, 2279, 2494, 2809, 3074, 3741, 4558, 4611, 5618, 6837, 7482, 8427, 9222, 13674, 16854, 66091, 81461, 120787, 132182, 162922, 198273, 241574, 244383, 362361, 396546, 488766, 724722, 3502823, 7005646, 10508469, 21016938]

約数ペア:

[(1, 21016938), (2, 10508469), (3, 7005646), (6, 3502823), (29, 724722), (43, 488766), (53, 396546), (58, 362361), (86, 244383), (87, 241574), (106, 198273), (129, 162922), (159, 132182), (174, 120787), (258, 81461), (318, 66091), (1247, 16854), (1537, 13674), (2279, 9222), (2494, 8427), (2809, 7482), (3074, 6837), (3741, 5618), (4558, 4611)]