257082007

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{1213}}^1$

素因数の和:1387

約数の個数: 32

約数和(自身を含む): 337744512

約数和(自身を除く): 80662505

約数列:

[1, 7, 13, 17, 91, 119, 137, 221, 959, 1213, 1547, 1781, 2329, 8491, 12467, 15769, 16303, 20621, 30277, 110383, 144347, 166181, 211939, 268073, 1163267, 1876511, 2160353, 2825077, 15122471, 19775539, 36726001, 257082007]

約数ペア:

[(1, 257082007), (7, 36726001), (13, 19775539), (17, 15122471), (91, 2825077), (119, 2160353), (137, 1876511), (221, 1163267), (959, 268073), (1213, 211939), (1547, 166181), (1781, 144347), (2329, 110383), (8491, 30277), (12467, 20621), (15769, 16303)]