638961066

素因数分解:

$2^1\times 3^2\times {\mathrm{37}}^1\times {\mathrm{349}}^1\times {\mathrm{2749}}^1$

素因数の和:3143

約数の個数: 48

約数和(自身を含む): 1426425000

約数和(自身を除く): 787463934

約数列:

[1, 2, 3, 6, 9, 18, 37, 74, 111, 222, 333, 349, 666, 698, 1047, 2094, 2749, 3141, 5498, 6282, 8247, 12913, 16494, 24741, 25826, 38739, 49482, 77478, 101713, 116217, 203426, 232434, 305139, 610278, 915417, 959401, 1830834, 1918802, 2878203, 5756406, 8634609, 17269218, 35497837, 70995674, 106493511, 212987022, 319480533, 638961066]

約数ペア:

[(1, 638961066), (2, 319480533), (3, 212987022), (6, 106493511), (9, 70995674), (18, 35497837), (37, 17269218), (74, 8634609), (111, 5756406), (222, 2878203), (333, 1918802), (349, 1830834), (666, 959401), (698, 915417), (1047, 610278), (2094, 305139), (2749, 232434), (3141, 203426), (5498, 116217), (6282, 101713), (8247, 77478), (12913, 49482), (16494, 38739), (24741, 25826)]