20568314

素因数分解:

$2^1\times {\mathrm{13}}^3\times {\mathrm{31}}^1\times {\mathrm{151}}^1$

素因数の和:223

約数の個数: 32

約数和(自身を含む): 34728960

約数和(自身を除く): 14160646

約数列:

[1, 2, 13, 26, 31, 62, 151, 169, 302, 338, 403, 806, 1963, 2197, 3926, 4394, 4681, 5239, 9362, 10478, 25519, 51038, 60853, 68107, 121706, 136214, 331747, 663494, 791089, 1582178, 10284157, 20568314]

約数ペア:

[(1, 20568314), (2, 10284157), (13, 1582178), (26, 791089), (31, 663494), (62, 331747), (151, 136214), (169, 121706), (302, 68107), (338, 60853), (403, 51038), (806, 25519), (1963, 10478), (2197, 9362), (3926, 5239), (4394, 4681)]