21403310

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{887}}^1$

素因数の和:1040

約数の個数: 32

約数和(自身を含む): 40919040

約数和(自身を除く): 19515730

約数列:

[1, 2, 5, 10, 19, 38, 95, 127, 190, 254, 635, 887, 1270, 1774, 2413, 4435, 4826, 8870, 12065, 16853, 24130, 33706, 84265, 112649, 168530, 225298, 563245, 1126490, 2140331, 4280662, 10701655, 21403310]

約数ペア:

[(1, 21403310), (2, 10701655), (5, 4280662), (10, 2140331), (19, 1126490), (38, 563245), (95, 225298), (127, 168530), (190, 112649), (254, 84265), (635, 33706), (887, 24130), (1270, 16853), (1774, 12065), (2413, 8870), (4435, 4826)]