20822172

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{487}}^1\times {\mathrm{509}}^1$

素因数の和:1010

約数の個数: 48

約数和(自身を含む): 55749120

約数和(自身を除く): 34926948

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 487, 509, 974, 1018, 1461, 1527, 1948, 2036, 2922, 3054, 3409, 3563, 5844, 6108, 6818, 7126, 10227, 10689, 13636, 14252, 20454, 21378, 40908, 42756, 247883, 495766, 743649, 991532, 1487298, 1735181, 2974596, 3470362, 5205543, 6940724, 10411086, 20822172]

約数ペア:

[(1, 20822172), (2, 10411086), (3, 6940724), (4, 5205543), (6, 3470362), (7, 2974596), (12, 1735181), (14, 1487298), (21, 991532), (28, 743649), (42, 495766), (84, 247883), (487, 42756), (509, 40908), (974, 21378), (1018, 20454), (1461, 14252), (1527, 13636), (1948, 10689), (2036, 10227), (2922, 7126), (3054, 6818), (3409, 6108), (3563, 5844)]