21898960

素因数分解:

$2^4\times 5^1\times {\mathrm{331}}^1\times {\mathrm{827}}^1$

素因数の和:1171

約数の個数: 40

約数和(自身を含む): 51130656

約数和(自身を除く): 29231696

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 331, 662, 827, 1324, 1654, 1655, 2648, 3308, 3310, 4135, 5296, 6616, 6620, 8270, 13232, 13240, 16540, 26480, 33080, 66160, 273737, 547474, 1094948, 1368685, 2189896, 2737370, 4379792, 5474740, 10949480, 21898960]

約数ペア:

[(1, 21898960), (2, 10949480), (4, 5474740), (5, 4379792), (8, 2737370), (10, 2189896), (16, 1368685), (20, 1094948), (40, 547474), (80, 273737), (331, 66160), (662, 33080), (827, 26480), (1324, 16540), (1654, 13240), (1655, 13232), (2648, 8270), (3308, 6620), (3310, 6616), (4135, 5296)]