19973317

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{12911}}^1$

素因数の和:12948

約数の個数: 16

約数和(自身を含む): 26030592

約数和(自身を除く): 6057275

約数列:

[1, 7, 13, 17, 91, 119, 221, 1547, 12911, 90377, 167843, 219487, 1174901, 1536409, 2853331, 19973317]

約数ペア:

[(1, 19973317), (7, 2853331), (13, 1536409), (17, 1174901), (91, 219487), (119, 167843), (221, 90377), (1547, 12911)]