19970181

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{28817}}^1$

素因数の和:28841

約数の個数: 24

約数和(自身を含む): 35964864

約数和(自身を除く): 15994683

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 693, 28817, 86451, 201719, 259353, 316987, 605157, 950961, 1815471, 2218909, 2852883, 6656727, 19970181]

約数ペア:

[(1, 19970181), (3, 6656727), (7, 2852883), (9, 2218909), (11, 1815471), (21, 950961), (33, 605157), (63, 316987), (77, 259353), (99, 201719), (231, 86451), (693, 28817)]