221893784

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{127819}}^1$

素因数の和:127863

約数の個数: 32

約数和(自身を含む): 490828800

約数和(自身を除く): 268935016

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 124, 217, 248, 434, 868, 1736, 127819, 255638, 511276, 894733, 1022552, 1789466, 3578932, 3962389, 7157864, 7924778, 15849556, 27736723, 31699112, 55473446, 110946892, 221893784]

約数ペア:

[(1, 221893784), (2, 110946892), (4, 55473446), (7, 31699112), (8, 27736723), (14, 15849556), (28, 7924778), (31, 7157864), (56, 3962389), (62, 3578932), (124, 1789466), (217, 1022552), (248, 894733), (434, 511276), (868, 255638), (1736, 127819)]