21217742

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{1597}}^1$

素因数の和:1692

約数の個数: 32

約数和(自身を含む): 39732672

約数和(自身を除く): 18514930

約数列:

[1, 2, 7, 13, 14, 26, 73, 91, 146, 182, 511, 949, 1022, 1597, 1898, 3194, 6643, 11179, 13286, 20761, 22358, 41522, 116581, 145327, 233162, 290654, 816067, 1515553, 1632134, 3031106, 10608871, 21217742]

約数ペア:

[(1, 21217742), (2, 10608871), (7, 3031106), (13, 1632134), (14, 1515553), (26, 816067), (73, 290654), (91, 233162), (146, 145327), (182, 116581), (511, 41522), (949, 22358), (1022, 20761), (1597, 13286), (1898, 11179), (3194, 6643)]