21818678

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{577}}^1$

素因数の和:696

約数の個数: 32

約数和(自身を含む): 39008064

約数和(自身を除く): 17189386

約数列:

[1, 2, 7, 14, 37, 73, 74, 146, 259, 511, 518, 577, 1022, 1154, 2701, 4039, 5402, 8078, 18907, 21349, 37814, 42121, 42698, 84242, 149443, 294847, 298886, 589694, 1558477, 3116954, 10909339, 21818678]

約数ペア:

[(1, 21818678), (2, 10909339), (7, 3116954), (14, 1558477), (37, 589694), (73, 298886), (74, 294847), (146, 149443), (259, 84242), (511, 42698), (518, 42121), (577, 37814), (1022, 21349), (1154, 18907), (2701, 8078), (4039, 5402)]