218635529

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{199}}^1$

素因数の和:381

約数の個数: 32

約数和(自身を含む): 266649600

約数和(自身を除く): 48014071

約数列:

[1, 7, 31, 61, 83, 199, 217, 427, 581, 1393, 1891, 2573, 5063, 6169, 12139, 13237, 16517, 18011, 35441, 43183, 84973, 115619, 156953, 376309, 512027, 1007537, 1098671, 2634163, 3584189, 7052759, 31233647, 218635529]

約数ペア:

[(1, 218635529), (7, 31233647), (31, 7052759), (61, 3584189), (83, 2634163), (199, 1098671), (217, 1007537), (427, 512027), (581, 376309), (1393, 156953), (1891, 115619), (2573, 84973), (5063, 43183), (6169, 35441), (12139, 18011), (13237, 16517)]