21297166

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1$

素因数の和:324

約数の個数: 32

約数和(自身を含む): 35964000

約数和(自身を除く): 14666834

約数列:

[1, 2, 11, 22, 73, 89, 146, 149, 178, 298, 803, 979, 1606, 1639, 1958, 3278, 6497, 10877, 12994, 13261, 21754, 26522, 71467, 119647, 142934, 145871, 239294, 291742, 968053, 1936106, 10648583, 21297166]

約数ペア:

[(1, 21297166), (2, 10648583), (11, 1936106), (22, 968053), (73, 291742), (89, 239294), (146, 145871), (149, 142934), (178, 119647), (298, 71467), (803, 26522), (979, 21754), (1606, 13261), (1639, 12994), (1958, 10877), (3278, 6497)]