21891343180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2203}}^1\times {\mathrm{70979}}^1$

素因数の和:73198

約数の個数: 48

約数和(自身を含む): 52563813120

約数和(自身を除く): 30672469940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2203, 4406, 8812, 11015, 15421, 22030, 30842, 44060, 61684, 70979, 77105, 141958, 154210, 283916, 308420, 354895, 496853, 709790, 993706, 1419580, 1987412, 2484265, 4968530, 9937060, 156366737, 312733474, 625466948, 781833685, 1094567159, 1563667370, 2189134318, 3127334740, 4378268636, 5472835795, 10945671590, 21891343180]

約数ペア:

[(1, 21891343180), (2, 10945671590), (4, 5472835795), (5, 4378268636), (7, 3127334740), (10, 2189134318), (14, 1563667370), (20, 1094567159), (28, 781833685), (35, 625466948), (70, 312733474), (140, 156366737), (2203, 9937060), (4406, 4968530), (8812, 2484265), (11015, 1987412), (15421, 1419580), (22030, 993706), (30842, 709790), (44060, 496853), (61684, 354895), (70979, 308420), (77105, 283916), (141958, 154210)]