221401876

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{457}}^1\times {\mathrm{3907}}^1$

素因数の和:4399

約数の個数: 24

約数和(自身を含む): 400929536

約数和(自身を除く): 179527660

約数列:

[1, 2, 4, 31, 62, 124, 457, 914, 1828, 3907, 7814, 14167, 15628, 28334, 56668, 121117, 242234, 484468, 1785499, 3570998, 7141996, 55350469, 110700938, 221401876]

約数ペア:

[(1, 221401876), (2, 110700938), (4, 55350469), (31, 7141996), (62, 3570998), (124, 1785499), (457, 484468), (914, 242234), (1828, 121117), (3907, 56668), (7814, 28334), (14167, 15628)]