20199179

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1187}}^1$

素因数の和:1235

約数の個数: 32

約数和(自身を含む): 28740096

約数和(自身を除く): 8540917

約数列:

[1, 7, 11, 13, 17, 77, 91, 119, 143, 187, 221, 1001, 1187, 1309, 1547, 2431, 8309, 13057, 15431, 17017, 20179, 91399, 108017, 141253, 169741, 221969, 262327, 1188187, 1553783, 1836289, 2885597, 20199179]

約数ペア:

[(1, 20199179), (7, 2885597), (11, 1836289), (13, 1553783), (17, 1188187), (77, 262327), (91, 221969), (119, 169741), (143, 141253), (187, 108017), (221, 91399), (1001, 20179), (1187, 17017), (1309, 15431), (1547, 13057), (2431, 8309)]