51521785

素因数分解:

$5^1\times 7^2\times {\mathrm{113}}^1\times {\mathrm{1861}}^1$

素因数の和:1993

約数の個数: 24

約数和(自身を含む): 72595656

約数和(自身を除く): 21073871

約数列:

[1, 5, 7, 35, 49, 113, 245, 565, 791, 1861, 3955, 5537, 9305, 13027, 27685, 65135, 91189, 210293, 455945, 1051465, 1472051, 7360255, 10304357, 51521785]

約数ペア:

[(1, 51521785), (5, 10304357), (7, 7360255), (35, 1472051), (49, 1051465), (113, 455945), (245, 210293), (565, 91189), (791, 65135), (1861, 27685), (3955, 13027), (5537, 9305)]