393806749

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{863}}^1$

素因数の和:1009

約数の個数: 32

約数和(自身を含む): 491028480

約数和(自身を除く): 97221731

約数列:

[1, 7, 19, 47, 73, 133, 329, 511, 863, 893, 1387, 3431, 6041, 6251, 9709, 16397, 24017, 40561, 62999, 65189, 114779, 283927, 440993, 456323, 770659, 1196981, 2960953, 5394613, 8378867, 20726671, 56258107, 393806749]

約数ペア:

[(1, 393806749), (7, 56258107), (19, 20726671), (47, 8378867), (73, 5394613), (133, 2960953), (329, 1196981), (511, 770659), (863, 456323), (893, 440993), (1387, 283927), (3431, 114779), (6041, 65189), (6251, 62999), (9709, 40561), (16397, 24017)]