21987868

素因数分解:

$2^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{6599}}^1$

素因数の和:6634

約数の個数: 36

約数和(自身を含む): 47401200

約数和(自身を除く): 25413332

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 49, 68, 98, 119, 196, 238, 476, 833, 1666, 3332, 6599, 13198, 26396, 46193, 92386, 112183, 184772, 224366, 323351, 448732, 646702, 785281, 1293404, 1570562, 3141124, 5496967, 10993934, 21987868]

約数ペア:

[(1, 21987868), (2, 10993934), (4, 5496967), (7, 3141124), (14, 1570562), (17, 1293404), (28, 785281), (34, 646702), (49, 448732), (68, 323351), (98, 224366), (119, 184772), (196, 112183), (238, 92386), (476, 46193), (833, 26396), (1666, 13198), (3332, 6599)]