216805869

素因数分解:

$3^3\times 7^1\times {\mathrm{89}}^1\times {\mathrm{12889}}^1$

素因数の和:12994

約数の個数: 32

約数和(自身を含む): 371232000

約数和(自身を除く): 154426131

約数列:

[1, 3, 7, 9, 21, 27, 63, 89, 189, 267, 623, 801, 1869, 2403, 5607, 12889, 16821, 38667, 90223, 116001, 270669, 348003, 812007, 1147121, 2436021, 3441363, 8029847, 10324089, 24089541, 30972267, 72268623, 216805869]

約数ペア:

[(1, 216805869), (3, 72268623), (7, 30972267), (9, 24089541), (21, 10324089), (27, 8029847), (63, 3441363), (89, 2436021), (189, 1147121), (267, 812007), (623, 348003), (801, 270669), (1869, 116001), (2403, 90223), (5607, 38667), (12889, 16821)]