19512745

素因数分解:

$5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1$

素因数の和:289

約数の個数: 32

約数和(自身を含む): 27848448

約数和(自身を除く): 8335703

約数列:

[1, 5, 7, 35, 53, 67, 157, 265, 335, 371, 469, 785, 1099, 1855, 2345, 3551, 5495, 8321, 10519, 17755, 24857, 41605, 52595, 58247, 73633, 124285, 291235, 368165, 557507, 2787535, 3902549, 19512745]

約数ペア:

[(1, 19512745), (5, 3902549), (7, 2787535), (35, 557507), (53, 368165), (67, 291235), (157, 124285), (265, 73633), (335, 58247), (371, 52595), (469, 41605), (785, 24857), (1099, 17755), (1855, 10519), (2345, 8321), (3551, 5495)]