21536464

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1361}}^1$

素因数の和:1435

約数の個数: 40

約数和(自身を含む): 44586432

約数和(自身を除く): 23049968

約数列:

[1, 2, 4, 8, 16, 23, 43, 46, 86, 92, 172, 184, 344, 368, 688, 989, 1361, 1978, 2722, 3956, 5444, 7912, 10888, 15824, 21776, 31303, 58523, 62606, 117046, 125212, 234092, 250424, 468184, 500848, 936368, 1346029, 2692058, 5384116, 10768232, 21536464]

約数ペア:

[(1, 21536464), (2, 10768232), (4, 5384116), (8, 2692058), (16, 1346029), (23, 936368), (43, 500848), (46, 468184), (86, 250424), (92, 234092), (172, 125212), (184, 117046), (344, 62606), (368, 58523), (688, 31303), (989, 21776), (1361, 15824), (1978, 10888), (2722, 7912), (3956, 5444)]