257405694

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{471439}}^1$

素因数の和:471464

約数の個数: 32

約数和(自身を含む): 633615360

約数和(自身を除く): 376209666

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 78, 91, 182, 273, 546, 471439, 942878, 1414317, 2828634, 3300073, 6128707, 6600146, 9900219, 12257414, 18386121, 19800438, 36772242, 42900949, 85801898, 128702847, 257405694]

約数ペア:

[(1, 257405694), (2, 128702847), (3, 85801898), (6, 42900949), (7, 36772242), (13, 19800438), (14, 18386121), (21, 12257414), (26, 9900219), (39, 6600146), (42, 6128707), (78, 3300073), (91, 2828634), (182, 1414317), (273, 942878), (546, 471439)]