20772661

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{73}}^1$

素因数の和:205

約数の個数: 32

約数和(自身を含む): 26853120

約数和(自身を除く): 6080459

約数列:

[1, 7, 13, 53, 59, 73, 91, 371, 413, 511, 689, 767, 949, 3127, 3869, 4307, 4823, 5369, 6643, 21889, 27083, 30149, 40651, 50297, 55991, 228271, 284557, 352079, 391937, 1597897, 2967523, 20772661]

約数ペア:

[(1, 20772661), (7, 2967523), (13, 1597897), (53, 391937), (59, 352079), (73, 284557), (91, 228271), (371, 55991), (413, 50297), (511, 40651), (689, 30149), (767, 27083), (949, 21889), (3127, 6643), (3869, 5369), (4307, 4823)]