21041197940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{786881}}^1$

素因数の和:787088

約数の個数: 48

約数和(自身を含む): 50763331584

約数和(自身を除く): 29722133644

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 191, 382, 764, 955, 1337, 1910, 2674, 3820, 5348, 6685, 13370, 26740, 786881, 1573762, 3147524, 3934405, 5508167, 7868810, 11016334, 15737620, 22032668, 27540835, 55081670, 110163340, 150294271, 300588542, 601177084, 751471355, 1052059897, 1502942710, 2104119794, 3005885420, 4208239588, 5260299485, 10520598970, 21041197940]

約数ペア:

[(1, 21041197940), (2, 10520598970), (4, 5260299485), (5, 4208239588), (7, 3005885420), (10, 2104119794), (14, 1502942710), (20, 1052059897), (28, 751471355), (35, 601177084), (70, 300588542), (140, 150294271), (191, 110163340), (382, 55081670), (764, 27540835), (955, 22032668), (1337, 15737620), (1910, 11016334), (2674, 7868810), (3820, 5508167), (5348, 3934405), (6685, 3147524), (13370, 1573762), (26740, 786881)]