18973984

素因数分解:

$2^5\times {\mathrm{31}}^2\times {\mathrm{617}}^1$

素因数の和:689

約数の個数: 36

約数和(自身を含む): 38661462

約数和(自身を除く): 19687478

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 124, 248, 496, 617, 961, 992, 1234, 1922, 2468, 3844, 4936, 7688, 9872, 15376, 19127, 19744, 30752, 38254, 76508, 153016, 306032, 592937, 612064, 1185874, 2371748, 4743496, 9486992, 18973984]

約数ペア:

[(1, 18973984), (2, 9486992), (4, 4743496), (8, 2371748), (16, 1185874), (31, 612064), (32, 592937), (62, 306032), (124, 153016), (248, 76508), (496, 38254), (617, 30752), (961, 19744), (992, 19127), (1234, 15376), (1922, 9872), (2468, 7688), (3844, 4936)]