21879448

素因数分解:

$2^3\times {\mathrm{137}}^1\times {\mathrm{19963}}^1$

素因数の和:20106

約数の個数: 16

約数和(自身を含む): 41325480

約数和(自身を除く): 19446032

約数列:

[1, 2, 4, 8, 137, 274, 548, 1096, 19963, 39926, 79852, 159704, 2734931, 5469862, 10939724, 21879448]

約数ペア:

[(1, 21879448), (2, 10939724), (4, 5469862), (8, 2734931), (137, 159704), (274, 79852), (548, 39926), (1096, 19963)]