19640372

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{367}}^1\times {\mathrm{787}}^1$

素因数の和:1175

約数の個数: 24

約数和(自身を含む): 36537984

約数和(自身を除く): 16897612

約数列:

[1, 2, 4, 17, 34, 68, 367, 734, 787, 1468, 1574, 3148, 6239, 12478, 13379, 24956, 26758, 53516, 288829, 577658, 1155316, 4910093, 9820186, 19640372]

約数ペア:

[(1, 19640372), (2, 9820186), (4, 4910093), (17, 1155316), (34, 577658), (68, 288829), (367, 53516), (734, 26758), (787, 24956), (1468, 13379), (1574, 12478), (3148, 6239)]