399393708

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{21911}}^1$

素因数の和:21963

約数の個数: 72

約数和(自身を含む): 1119089664

約数和(自身を除く): 719695956

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 31, 42, 49, 62, 84, 93, 98, 124, 147, 186, 196, 217, 294, 372, 434, 588, 651, 868, 1302, 1519, 2604, 3038, 4557, 6076, 9114, 18228, 21911, 43822, 65733, 87644, 131466, 153377, 262932, 306754, 460131, 613508, 679241, 920262, 1073639, 1358482, 1840524, 2037723, 2147278, 2716964, 3220917, 4075446, 4294556, 4754687, 6441834, 8150892, 9509374, 12883668, 14264061, 19018748, 28528122, 33282809, 57056244, 66565618, 99848427, 133131236, 199696854, 399393708]

約数ペア:

[(1, 399393708), (2, 199696854), (3, 133131236), (4, 99848427), (6, 66565618), (7, 57056244), (12, 33282809), (14, 28528122), (21, 19018748), (28, 14264061), (31, 12883668), (42, 9509374), (49, 8150892), (62, 6441834), (84, 4754687), (93, 4294556), (98, 4075446), (124, 3220917), (147, 2716964), (186, 2147278), (196, 2037723), (217, 1840524), (294, 1358482), (372, 1073639), (434, 920262), (588, 679241), (651, 613508), (868, 460131), (1302, 306754), (1519, 262932), (2604, 153377), (3038, 131466), (4557, 87644), (6076, 65733), (9114, 43822), (18228, 21911)]