21142746

素因数分解:

$2^1\times 3^2\times {\mathrm{661}}^1\times {\mathrm{1777}}^1$

素因数の和:2446

約数の個数: 24

約数和(自身を含む): 45904404

約数和(自身を除く): 24761658

約数列:

[1, 2, 3, 6, 9, 18, 661, 1322, 1777, 1983, 3554, 3966, 5331, 5949, 10662, 11898, 15993, 31986, 1174597, 2349194, 3523791, 7047582, 10571373, 21142746]

約数ペア:

[(1, 21142746), (2, 10571373), (3, 7047582), (6, 3523791), (9, 2349194), (18, 1174597), (661, 31986), (1322, 15993), (1777, 11898), (1983, 10662), (3554, 5949), (3966, 5331)]