217664713

素因数分解:

$7^3\times {\mathrm{149}}^1\times {\mathrm{4259}}^1$

素因数の和:4429

約数の個数: 16

約数和(自身を含む): 255600000

約数和(自身を除く): 37935287

約数列:

[1, 7, 49, 149, 343, 1043, 4259, 7301, 29813, 51107, 208691, 634591, 1460837, 4442137, 31094959, 217664713]

約数ペア:

[(1, 217664713), (7, 31094959), (49, 4442137), (149, 1460837), (343, 634591), (1043, 208691), (4259, 51107), (7301, 29813)]