19986254

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{4229}}^1$

素因数の和:4387

約数の個数: 16

約数和(自身を含む): 31978800

約数和(自身を除く): 11992546

約数列:

[1, 2, 17, 34, 139, 278, 2363, 4229, 4726, 8458, 71893, 143786, 587831, 1175662, 9993127, 19986254]

約数ペア:

[(1, 19986254), (2, 9993127), (17, 1175662), (34, 587831), (139, 143786), (278, 71893), (2363, 8458), (4229, 4726)]