20808217737

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{81527}}^1$

素因数の和:81699

約数の個数: 40

約数和(自身を含む): 32672509056

約数和(自身を除く): 11864291319

約数列:

[1, 3, 9, 23, 27, 69, 81, 137, 207, 411, 621, 1233, 1863, 3151, 3699, 9453, 11097, 28359, 81527, 85077, 244581, 255231, 733743, 1875121, 2201229, 5625363, 6603687, 11169199, 16876089, 33507597, 50628267, 100522791, 151884801, 256891577, 301568373, 770674731, 904705119, 2312024193, 6936072579, 20808217737]

約数ペア:

[(1, 20808217737), (3, 6936072579), (9, 2312024193), (23, 904705119), (27, 770674731), (69, 301568373), (81, 256891577), (137, 151884801), (207, 100522791), (411, 50628267), (621, 33507597), (1233, 16876089), (1863, 11169199), (3151, 6603687), (3699, 5625363), (9453, 2201229), (11097, 1875121), (28359, 733743), (81527, 255231), (85077, 244581)]