21661000

素因数分解:

$2^3\times 5^3\times {\mathrm{21661}}^1$

素因数の和:21682

約数の個数: 32

約数和(自身を含む): 50689080

約数和(自身を除く): 29028080

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 1000, 21661, 43322, 86644, 108305, 173288, 216610, 433220, 541525, 866440, 1083050, 2166100, 2707625, 4332200, 5415250, 10830500, 21661000]

約数ペア:

[(1, 21661000), (2, 10830500), (4, 5415250), (5, 4332200), (8, 2707625), (10, 2166100), (20, 1083050), (25, 866440), (40, 541525), (50, 433220), (100, 216610), (125, 173288), (200, 108305), (250, 86644), (500, 43322), (1000, 21661)]