18916804588

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{8573}}^1$

素因数の和:8743

約数の個数: 72

約数和(自身を含む): 37549181376

約数和(自身を除く): 18632376788

約数列:

[1, 2, 4, 11, 22, 44, 47, 94, 97, 121, 188, 194, 242, 388, 484, 517, 1034, 1067, 2068, 2134, 4268, 4559, 5687, 8573, 9118, 11374, 11737, 17146, 18236, 22748, 23474, 34292, 46948, 50149, 94303, 100298, 188606, 200596, 377212, 402931, 551639, 805862, 831581, 1037333, 1103278, 1611724, 1663162, 2074666, 2206556, 3326324, 4149332, 4432241, 8864482, 9147391, 17728964, 18294782, 36589564, 39084307, 48754651, 78168614, 97509302, 100621301, 156337228, 195018604, 201242602, 402485204, 429927377, 859854754, 1719709508, 4729201147, 9458402294, 18916804588]

約数ペア:

[(1, 18916804588), (2, 9458402294), (4, 4729201147), (11, 1719709508), (22, 859854754), (44, 429927377), (47, 402485204), (94, 201242602), (97, 195018604), (121, 156337228), (188, 100621301), (194, 97509302), (242, 78168614), (388, 48754651), (484, 39084307), (517, 36589564), (1034, 18294782), (1067, 17728964), (2068, 9147391), (2134, 8864482), (4268, 4432241), (4559, 4149332), (5687, 3326324), (8573, 2206556), (9118, 2074666), (11374, 1663162), (11737, 1611724), (17146, 1103278), (18236, 1037333), (22748, 831581), (23474, 805862), (34292, 551639), (46948, 402931), (50149, 377212), (94303, 200596), (100298, 188606)]