21938075

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1259}}^1$

素因数の和:1327

約数の個数: 24

約数和(自身を含む): 29529360

約数和(自身を除く): 7591285

約数列:

[1, 5, 17, 25, 41, 85, 205, 425, 697, 1025, 1259, 3485, 6295, 17425, 21403, 31475, 51619, 107015, 258095, 535075, 877523, 1290475, 4387615, 21938075]

約数ペア:

[(1, 21938075), (5, 4387615), (17, 1290475), (25, 877523), (41, 535075), (85, 258095), (205, 107015), (425, 51619), (697, 31475), (1025, 21403), (1259, 17425), (3485, 6295)]