21011116

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{1193}}^1$

素因数の和:1258

約数の個数: 48

約数和(自身を含む): 45734976

約数和(自身を除く): 24723860

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 37, 68, 74, 119, 148, 238, 259, 476, 518, 629, 1036, 1193, 1258, 2386, 2516, 4403, 4772, 8351, 8806, 16702, 17612, 20281, 33404, 40562, 44141, 81124, 88282, 141967, 176564, 283934, 308987, 567868, 617974, 750397, 1235948, 1500794, 3001588, 5252779, 10505558, 21011116]

約数ペア:

[(1, 21011116), (2, 10505558), (4, 5252779), (7, 3001588), (14, 1500794), (17, 1235948), (28, 750397), (34, 617974), (37, 567868), (68, 308987), (74, 283934), (119, 176564), (148, 141967), (238, 88282), (259, 81124), (476, 44141), (518, 40562), (629, 33404), (1036, 20281), (1193, 17612), (1258, 16702), (2386, 8806), (2516, 8351), (4403, 4772)]