209969091

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{1097}}^1$

素因数の和:1265

約数の個数: 40

約数和(自身を含む): 334802160

約数和(自身を除く): 124833069

約数列:

[1, 3, 9, 17, 27, 51, 81, 139, 153, 417, 459, 1097, 1251, 1377, 2363, 3291, 3753, 7089, 9873, 11259, 18649, 21267, 29619, 55947, 63801, 88857, 152483, 167841, 191403, 457449, 503523, 1372347, 1510569, 2592211, 4117041, 7776633, 12351123, 23329899, 69989697, 209969091]

約数ペア:

[(1, 209969091), (3, 69989697), (9, 23329899), (17, 12351123), (27, 7776633), (51, 4117041), (81, 2592211), (139, 1510569), (153, 1372347), (417, 503523), (459, 457449), (1097, 191403), (1251, 167841), (1377, 152483), (2363, 88857), (3291, 63801), (3753, 55947), (7089, 29619), (9873, 21267), (11259, 18649)]