252395521

素因数分解:

$7^4\times {\mathrm{31}}^1\times {\mathrm{3391}}^1$

素因数の和:3450

約数の個数: 20

約数和(自身を含む): 304031744

約数和(自身を除く): 51636223

約数列:

[1, 7, 31, 49, 217, 343, 1519, 2401, 3391, 10633, 23737, 74431, 105121, 166159, 735847, 1163113, 5150929, 8141791, 36056503, 252395521]

約数ペア:

[(1, 252395521), (7, 36056503), (31, 8141791), (49, 5150929), (217, 1163113), (343, 735847), (1519, 166159), (2401, 105121), (3391, 74431), (10633, 23737)]