21712960

素因数分解:

$2^6\times 5^1\times {\mathrm{67853}}^1$

素因数の和:67870

約数の個数: 28

約数和(自身を含む): 51704748

約数和(自身を除く): 29991788

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 67853, 135706, 271412, 339265, 542824, 678530, 1085648, 1357060, 2171296, 2714120, 4342592, 5428240, 10856480, 21712960]

約数ペア:

[(1, 21712960), (2, 10856480), (4, 5428240), (5, 4342592), (8, 2714120), (10, 2171296), (16, 1357060), (20, 1085648), (32, 678530), (40, 542824), (64, 339265), (80, 271412), (160, 135706), (320, 67853)]