18887463

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{509}}^1$

素因数の和:572

約数の個数: 48

約数和(自身を含む): 33945600

約数和(自身を除く): 15058137

約数列:

[1, 3, 7, 9, 19, 21, 31, 57, 63, 93, 133, 171, 217, 279, 399, 509, 589, 651, 1197, 1527, 1767, 1953, 3563, 4123, 4581, 5301, 9671, 10689, 12369, 15779, 29013, 32067, 37107, 47337, 67697, 87039, 110453, 142011, 203091, 299801, 331359, 609273, 899403, 994077, 2098607, 2698209, 6295821, 18887463]

約数ペア:

[(1, 18887463), (3, 6295821), (7, 2698209), (9, 2098607), (19, 994077), (21, 899403), (31, 609273), (57, 331359), (63, 299801), (93, 203091), (133, 142011), (171, 110453), (217, 87039), (279, 67697), (399, 47337), (509, 37107), (589, 32067), (651, 29013), (1197, 15779), (1527, 12369), (1767, 10689), (1953, 9671), (3563, 5301), (4123, 4581)]