21848540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{156061}}^1$

素因数の和:156077

約数の個数: 24

約数和(自身を含む): 52436832

約数和(自身を除く): 30588292

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 156061, 312122, 624244, 780305, 1092427, 1560610, 2184854, 3121220, 4369708, 5462135, 10924270, 21848540]

約数ペア:

[(1, 21848540), (2, 10924270), (4, 5462135), (5, 4369708), (7, 3121220), (10, 2184854), (14, 1560610), (20, 1092427), (28, 780305), (35, 624244), (70, 312122), (140, 156061)]