21856740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{5437}}^1$

素因数の和:5516

約数の個数: 48

約数和(自身を含む): 62123712

約数和(自身を除く): 40266972

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 67, 134, 201, 268, 335, 402, 670, 804, 1005, 1340, 2010, 4020, 5437, 10874, 16311, 21748, 27185, 32622, 54370, 65244, 81555, 108740, 163110, 326220, 364279, 728558, 1092837, 1457116, 1821395, 2185674, 3642790, 4371348, 5464185, 7285580, 10928370, 21856740]

約数ペア:

[(1, 21856740), (2, 10928370), (3, 7285580), (4, 5464185), (5, 4371348), (6, 3642790), (10, 2185674), (12, 1821395), (15, 1457116), (20, 1092837), (30, 728558), (60, 364279), (67, 326220), (134, 163110), (201, 108740), (268, 81555), (335, 65244), (402, 54370), (670, 32622), (804, 27185), (1005, 21748), (1340, 16311), (2010, 10874), (4020, 5437)]