20716584

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{317}}^1\times {\mathrm{389}}^1$

素因数の和:722

約数の個数: 64

約数和(自身を含む): 59529600

約数和(自身を除く): 38813016

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 317, 389, 634, 778, 951, 1167, 1268, 1556, 1902, 2219, 2334, 2536, 2723, 3112, 3804, 4438, 4668, 5446, 6657, 7608, 8169, 8876, 9336, 10892, 13314, 16338, 17752, 21784, 26628, 32676, 53256, 65352, 123313, 246626, 369939, 493252, 739878, 863191, 986504, 1479756, 1726382, 2589573, 2959512, 3452764, 5179146, 6905528, 10358292, 20716584]

約数ペア:

[(1, 20716584), (2, 10358292), (3, 6905528), (4, 5179146), (6, 3452764), (7, 2959512), (8, 2589573), (12, 1726382), (14, 1479756), (21, 986504), (24, 863191), (28, 739878), (42, 493252), (56, 369939), (84, 246626), (168, 123313), (317, 65352), (389, 53256), (634, 32676), (778, 26628), (951, 21784), (1167, 17752), (1268, 16338), (1556, 13314), (1902, 10892), (2219, 9336), (2334, 8876), (2536, 8169), (2723, 7608), (3112, 6657), (3804, 5446), (4438, 4668)]