21572356

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{5843}}^1$

素因数の和:5931

約数の個数: 24

約数和(自身を含む): 41235264

約数和(自身を除く): 19662908

約数列:

[1, 2, 4, 13, 26, 52, 71, 142, 284, 923, 1846, 3692, 5843, 11686, 23372, 75959, 151918, 303836, 414853, 829706, 1659412, 5393089, 10786178, 21572356]

約数ペア:

[(1, 21572356), (2, 10786178), (4, 5393089), (13, 1659412), (26, 829706), (52, 414853), (71, 303836), (142, 151918), (284, 75959), (923, 23372), (1846, 11686), (3692, 5843)]