20783516

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{12893}}^1$

素因数の和:12941

約数の個数: 24

約数和(自身を含む): 40435584

約数和(自身を除く): 19652068

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 403, 806, 1612, 12893, 25786, 51572, 167609, 335218, 399683, 670436, 799366, 1598732, 5195879, 10391758, 20783516]

約数ペア:

[(1, 20783516), (2, 10391758), (4, 5195879), (13, 1598732), (26, 799366), (31, 670436), (52, 399683), (62, 335218), (124, 167609), (403, 51572), (806, 25786), (1612, 12893)]