19701344

素因数分解:

$2^5\times {\mathrm{13}}^2\times {\mathrm{3643}}^1$

素因数の和:3679

約数の個数: 36

約数和(自身を含む): 42011676

約数和(自身を除く): 22310332

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 169, 208, 338, 416, 676, 1352, 2704, 3643, 5408, 7286, 14572, 29144, 47359, 58288, 94718, 116576, 189436, 378872, 615667, 757744, 1231334, 1515488, 2462668, 4925336, 9850672, 19701344]

約数ペア:

[(1, 19701344), (2, 9850672), (4, 4925336), (8, 2462668), (13, 1515488), (16, 1231334), (26, 757744), (32, 615667), (52, 378872), (104, 189436), (169, 116576), (208, 94718), (338, 58288), (416, 47359), (676, 29144), (1352, 14572), (2704, 7286), (3643, 5408)]