21945385

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{479}}^1$

素因数の和:526

約数の個数: 48

約数和(自身を含む): 35458560

約数和(自身を除く): 13513175

約数列:

[1, 5, 7, 11, 17, 35, 49, 55, 77, 85, 119, 187, 245, 385, 479, 539, 595, 833, 935, 1309, 2395, 2695, 3353, 4165, 5269, 6545, 8143, 9163, 16765, 23471, 26345, 36883, 40715, 45815, 57001, 89573, 117355, 184415, 258181, 285005, 399007, 447865, 627011, 1290905, 1995035, 3135055, 4389077, 21945385]

約数ペア:

[(1, 21945385), (5, 4389077), (7, 3135055), (11, 1995035), (17, 1290905), (35, 627011), (49, 447865), (55, 399007), (77, 285005), (85, 258181), (119, 184415), (187, 117355), (245, 89573), (385, 57001), (479, 45815), (539, 40715), (595, 36883), (833, 26345), (935, 23471), (1309, 16765), (2395, 9163), (2695, 8143), (3353, 6545), (4165, 5269)]