12998965

素因数分解:

$5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{3121}}^1$

素因数の和:3157

約数の個数: 24

約数和(自身を含む): 19219032

約数和(自身を除く): 6220067

約数列:

[1, 5, 7, 17, 35, 49, 85, 119, 245, 595, 833, 3121, 4165, 15605, 21847, 53057, 109235, 152929, 265285, 371399, 764645, 1856995, 2599793, 12998965]

約数ペア:

[(1, 12998965), (5, 2599793), (7, 1856995), (17, 764645), (35, 371399), (49, 265285), (85, 152929), (119, 109235), (245, 53057), (595, 21847), (833, 15605), (3121, 4165)]