21689584

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{6247}}^1$

素因数の和:6293

約数の個数: 40

約数和(自身を含む): 49584128

約数和(自身を除く): 27894544

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 62, 112, 124, 217, 248, 434, 496, 868, 1736, 3472, 6247, 12494, 24988, 43729, 49976, 87458, 99952, 174916, 193657, 349832, 387314, 699664, 774628, 1355599, 1549256, 2711198, 3098512, 5422396, 10844792, 21689584]

約数ペア:

[(1, 21689584), (2, 10844792), (4, 5422396), (7, 3098512), (8, 2711198), (14, 1549256), (16, 1355599), (28, 774628), (31, 699664), (56, 387314), (62, 349832), (112, 193657), (124, 174916), (217, 99952), (248, 87458), (434, 49976), (496, 43729), (868, 24988), (1736, 12494), (3472, 6247)]