20052039

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{197}}^1$

素因数の和:375

約数の個数: 32

約数和(自身を含む): 31781376

約数和(自身を除く): 11729337

約数列:

[1, 3, 7, 21, 37, 111, 131, 197, 259, 393, 591, 777, 917, 1379, 2751, 4137, 4847, 7289, 14541, 21867, 25807, 33929, 51023, 77421, 101787, 153069, 180649, 541947, 954859, 2864577, 6684013, 20052039]

約数ペア:

[(1, 20052039), (3, 6684013), (7, 2864577), (21, 954859), (37, 541947), (111, 180649), (131, 153069), (197, 101787), (259, 77421), (393, 51023), (591, 33929), (777, 25807), (917, 21867), (1379, 14541), (2751, 7289), (4137, 4847)]