218967539

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{241}}^1$

素因数の和:411

約数の個数: 32

約数和(自身を含む): 267632640

約数和(自身を除く): 48665101

約数列:

[1, 7, 31, 53, 79, 217, 241, 371, 553, 1643, 1687, 2449, 4187, 7471, 11501, 12773, 17143, 19039, 29309, 52297, 89411, 129797, 133273, 395963, 590209, 908579, 1009067, 2771741, 4131463, 7063469, 31281077, 218967539]

約数ペア:

[(1, 218967539), (7, 31281077), (31, 7063469), (53, 4131463), (79, 2771741), (217, 1009067), (241, 908579), (371, 590209), (553, 395963), (1643, 133273), (1687, 129797), (2449, 89411), (4187, 52297), (7471, 29309), (11501, 19039), (12773, 17143)]