21934816

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{839}}^1$

素因数の和:911

約数の個数: 48

約数和(自身を含む): 46569600

約数和(自身を除く): 24634784

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 43, 76, 86, 152, 172, 304, 344, 608, 688, 817, 839, 1376, 1634, 1678, 3268, 3356, 6536, 6712, 13072, 13424, 15941, 26144, 26848, 31882, 36077, 63764, 72154, 127528, 144308, 255056, 288616, 510112, 577232, 685463, 1154464, 1370926, 2741852, 5483704, 10967408, 21934816]

約数ペア:

[(1, 21934816), (2, 10967408), (4, 5483704), (8, 2741852), (16, 1370926), (19, 1154464), (32, 685463), (38, 577232), (43, 510112), (76, 288616), (86, 255056), (152, 144308), (172, 127528), (304, 72154), (344, 63764), (608, 36077), (688, 31882), (817, 26848), (839, 26144), (1376, 15941), (1634, 13424), (1678, 13072), (3268, 6712), (3356, 6536)]