20686281

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{1163}}^1$

素因数の和:1202

約数の個数: 36

約数和(自身を含む): 35297136

約数和(自身を除く): 14610855

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 121, 147, 231, 363, 539, 847, 1163, 1617, 2541, 3489, 5929, 8141, 12793, 17787, 24423, 38379, 56987, 89551, 140723, 170961, 268653, 422169, 626857, 985061, 1880571, 2955183, 6895427, 20686281]

約数ペア:

[(1, 20686281), (3, 6895427), (7, 2955183), (11, 1880571), (21, 985061), (33, 626857), (49, 422169), (77, 268653), (121, 170961), (147, 140723), (231, 89551), (363, 56987), (539, 38379), (847, 24423), (1163, 17787), (1617, 12793), (2541, 8141), (3489, 5929)]