19973291

素因数分解:

${\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{283}}^1$

素因数の和:446

約数の個数: 16

約数和(自身を含む): 22186080

約数和(自身を除く): 2212789

約数列:

[1, 13, 61, 89, 283, 793, 1157, 3679, 5429, 17263, 25187, 70577, 224419, 327431, 1536407, 19973291]

約数ペア:

[(1, 19973291), (13, 1536407), (61, 327431), (89, 224419), (283, 70577), (793, 25187), (1157, 17263), (3679, 5429)]