1618947

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1$

素因数の和:125

約数の個数: 40

約数和(自身を含む): 2787840

約数和(自身を除く): 1168893

約数列:

[1, 3, 9, 11, 23, 27, 33, 69, 79, 81, 99, 207, 237, 253, 297, 621, 711, 759, 869, 891, 1817, 1863, 2133, 2277, 2607, 5451, 6399, 6831, 7821, 16353, 19987, 20493, 23463, 49059, 59961, 70389, 147177, 179883, 539649, 1618947]

約数ペア:

[(1, 1618947), (3, 539649), (9, 179883), (11, 147177), (23, 70389), (27, 59961), (33, 49059), (69, 23463), (79, 20493), (81, 19987), (99, 16353), (207, 7821), (237, 6831), (253, 6399), (297, 5451), (621, 2607), (711, 2277), (759, 2133), (869, 1863), (891, 1817)]