21373975

素因数分解:

$5^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{3301}}^1$

素因数の和:3355

約数の個数: 24

約数和(自身を含む): 31118048

約数和(自身を除く): 9744073

約数列:

[1, 5, 7, 25, 35, 37, 175, 185, 259, 925, 1295, 3301, 6475, 16505, 23107, 82525, 115535, 122137, 577675, 610685, 854959, 3053425, 4274795, 21373975]

約数ペア:

[(1, 21373975), (5, 4274795), (7, 3053425), (25, 854959), (35, 610685), (37, 577675), (175, 122137), (185, 115535), (259, 82525), (925, 23107), (1295, 16505), (3301, 6475)]