21502852

素因数分解:

$2^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{9721}}^1$

素因数の和:9811

約数の個数: 24

約数和(自身を含む): 43554560

約数和(自身を除く): 22051708

約数列:

[1, 2, 4, 7, 14, 28, 79, 158, 316, 553, 1106, 2212, 9721, 19442, 38884, 68047, 136094, 272188, 767959, 1535918, 3071836, 5375713, 10751426, 21502852]

約数ペア:

[(1, 21502852), (2, 10751426), (4, 5375713), (7, 3071836), (14, 1535918), (28, 767959), (79, 272188), (158, 136094), (316, 68047), (553, 38884), (1106, 19442), (2212, 9721)]