21337756

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{2539}}^1$

素因数の和:2745

約数の個数: 24

約数和(自身を含む): 40965120

約数和(自身を除く): 19627364

約数列:

[1, 2, 4, 11, 22, 44, 191, 382, 764, 2101, 2539, 4202, 5078, 8404, 10156, 27929, 55858, 111716, 484949, 969898, 1939796, 5334439, 10668878, 21337756]

約数ペア:

[(1, 21337756), (2, 10668878), (4, 5334439), (11, 1939796), (22, 969898), (44, 484949), (191, 111716), (382, 55858), (764, 27929), (2101, 10156), (2539, 8404), (4202, 5078)]