19982661

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{7459}}^1$

素因数の和:7528

約数の個数: 16

約数和(自身を含む): 28646400

約数和(自身を除く): 8663739

約数列:

[1, 3, 19, 47, 57, 141, 893, 2679, 7459, 22377, 141721, 350573, 425163, 1051719, 6660887, 19982661]

約数ペア:

[(1, 19982661), (3, 6660887), (19, 1051719), (47, 425163), (57, 350573), (141, 141721), (893, 22377), (2679, 7459)]