20175247939

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{401}}^1\times {\mathrm{28409}}^1$

素因数の和:28851

約数の個数: 32

約数和(自身を含む): 26313569280

約数和(自身を除く): 6138321341

約数列:

[1, 7, 11, 23, 77, 161, 253, 401, 1771, 2807, 4411, 9223, 28409, 30877, 64561, 101453, 198863, 312499, 653407, 710171, 2187493, 4573849, 7187477, 11392009, 50312339, 79744063, 125312099, 262016207, 877184693, 1834113449, 2882178277, 20175247939]

約数ペア:

[(1, 20175247939), (7, 2882178277), (11, 1834113449), (23, 877184693), (77, 262016207), (161, 125312099), (253, 79744063), (401, 50312339), (1771, 11392009), (2807, 7187477), (4411, 4573849), (9223, 2187493), (28409, 710171), (30877, 653407), (64561, 312499), (101453, 198863)]