18279305

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1$

素因数の和:269

約数の個数: 32

約数和(自身を含む): 25214976

約数和(自身を除く): 6935671

約数列:

[1, 5, 11, 31, 55, 71, 151, 155, 341, 355, 755, 781, 1661, 1705, 2201, 3905, 4681, 8305, 10721, 11005, 23405, 24211, 51491, 53605, 117931, 121055, 257455, 332351, 589655, 1661755, 3655861, 18279305]

約数ペア:

[(1, 18279305), (5, 3655861), (11, 1661755), (31, 589655), (55, 332351), (71, 257455), (151, 121055), (155, 117931), (341, 53605), (355, 51491), (755, 24211), (781, 23405), (1661, 11005), (1705, 10721), (2201, 8305), (3905, 4681)]