20992712

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{2843}}^1$

素因数の和:2933

約数の個数: 32

約数和(自身を含む): 43001280

約数和(自身を除く): 22008568

約数列:

[1, 2, 4, 8, 13, 26, 52, 71, 104, 142, 284, 568, 923, 1846, 2843, 3692, 5686, 7384, 11372, 22744, 36959, 73918, 147836, 201853, 295672, 403706, 807412, 1614824, 2624089, 5248178, 10496356, 20992712]

約数ペア:

[(1, 20992712), (2, 10496356), (4, 5248178), (8, 2624089), (13, 1614824), (26, 807412), (52, 403706), (71, 295672), (104, 201853), (142, 147836), (284, 73918), (568, 36959), (923, 22744), (1846, 11372), (2843, 7384), (3692, 5686)]