21038402

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{2039}}^1$

素因数の和:2126

約数の個数: 32

約数和(自身を含む): 39951360

約数和(自身を除く): 18912958

約数列:

[1, 2, 7, 11, 14, 22, 67, 77, 134, 154, 469, 737, 938, 1474, 2039, 4078, 5159, 10318, 14273, 22429, 28546, 44858, 136613, 157003, 273226, 314006, 956291, 1502743, 1912582, 3005486, 10519201, 21038402]

約数ペア:

[(1, 21038402), (2, 10519201), (7, 3005486), (11, 1912582), (14, 1502743), (22, 956291), (67, 314006), (77, 273226), (134, 157003), (154, 136613), (469, 44858), (737, 28546), (938, 22429), (1474, 14273), (2039, 10318), (4078, 5159)]