20552792

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{2381}}^1$

素因数の和:2483

約数の個数: 32

約数和(自身を含む): 42018480

約数和(自身を除く): 21465688

約数列:

[1, 2, 4, 8, 13, 26, 52, 83, 104, 166, 332, 664, 1079, 2158, 2381, 4316, 4762, 8632, 9524, 19048, 30953, 61906, 123812, 197623, 247624, 395246, 790492, 1580984, 2569099, 5138198, 10276396, 20552792]

約数ペア:

[(1, 20552792), (2, 10276396), (4, 5138198), (8, 2569099), (13, 1580984), (26, 790492), (52, 395246), (83, 247624), (104, 197623), (166, 123812), (332, 61906), (664, 30953), (1079, 19048), (2158, 9524), (2381, 8632), (4316, 4762)]