221206405

素因数分解:

$5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{1427}}^1$

素因数の和:1585

約数の個数: 32

約数和(自身を含む): 313657344

約数和(自身を除く): 92450939

約数列:

[1, 5, 7, 35, 43, 103, 215, 301, 515, 721, 1427, 1505, 3605, 4429, 7135, 9989, 22145, 31003, 49945, 61361, 146981, 155015, 306805, 429527, 734905, 1028867, 2147635, 5144335, 6320183, 31600915, 44241281, 221206405]

約数ペア:

[(1, 221206405), (5, 44241281), (7, 31600915), (35, 6320183), (43, 5144335), (103, 2147635), (215, 1028867), (301, 734905), (515, 429527), (721, 306805), (1427, 155015), (1505, 146981), (3605, 61361), (4429, 49945), (7135, 31003), (9989, 22145)]