21151808

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{19441}}^1$

素因数の和:19470

約数の個数: 28

約数和(自身を含む): 44444412

約数和(自身を除く): 23292604

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 136, 272, 544, 1088, 19441, 38882, 77764, 155528, 311056, 330497, 622112, 660994, 1244224, 1321988, 2643976, 5287952, 10575904, 21151808]

約数ペア:

[(1, 21151808), (2, 10575904), (4, 5287952), (8, 2643976), (16, 1321988), (17, 1244224), (32, 660994), (34, 622112), (64, 330497), (68, 311056), (136, 155528), (272, 77764), (544, 38882), (1088, 19441)]