16197921

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{151}}^1$

素因数の和:326

約数の個数: 32

約数和(自身を含む): 25171200

約数和(自身を除く): 8973279

約数列:

[1, 3, 9, 27, 29, 87, 137, 151, 261, 411, 453, 783, 1233, 1359, 3699, 3973, 4077, 4379, 11919, 13137, 20687, 35757, 39411, 62061, 107271, 118233, 186183, 558549, 599923, 1799769, 5399307, 16197921]

約数ペア:

[(1, 16197921), (3, 5399307), (9, 1799769), (27, 599923), (29, 558549), (87, 186183), (137, 118233), (151, 107271), (261, 62061), (411, 39411), (453, 35757), (783, 20687), (1233, 13137), (1359, 11919), (3699, 4379), (3973, 4077)]