20922496

素因数分解:

$2^7\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1229}}^1$

素因数の和:1269

約数の個数: 64

約数和(自身を含む): 50184000

約数和(自身を除く): 29261504

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 38, 56, 64, 76, 112, 128, 133, 152, 224, 266, 304, 448, 532, 608, 896, 1064, 1216, 1229, 2128, 2432, 2458, 4256, 4916, 8512, 8603, 9832, 17024, 17206, 19664, 23351, 34412, 39328, 46702, 68824, 78656, 93404, 137648, 157312, 163457, 186808, 275296, 326914, 373616, 550592, 653828, 747232, 1101184, 1307656, 1494464, 2615312, 2988928, 5230624, 10461248, 20922496]

約数ペア:

[(1, 20922496), (2, 10461248), (4, 5230624), (7, 2988928), (8, 2615312), (14, 1494464), (16, 1307656), (19, 1101184), (28, 747232), (32, 653828), (38, 550592), (56, 373616), (64, 326914), (76, 275296), (112, 186808), (128, 163457), (133, 157312), (152, 137648), (224, 93404), (266, 78656), (304, 68824), (448, 46702), (532, 39328), (608, 34412), (896, 23351), (1064, 19664), (1216, 17206), (1229, 17024), (2128, 9832), (2432, 8603), (2458, 8512), (4256, 4916)]