18638392

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{7213}}^1$

素因数の和:7255

約数の個数: 32

約数和(自身を含む): 38955600

約数和(自身を除く): 20317208

約数列:

[1, 2, 4, 8, 17, 19, 34, 38, 68, 76, 136, 152, 323, 646, 1292, 2584, 7213, 14426, 28852, 57704, 122621, 137047, 245242, 274094, 490484, 548188, 980968, 1096376, 2329799, 4659598, 9319196, 18638392]

約数ペア:

[(1, 18638392), (2, 9319196), (4, 4659598), (8, 2329799), (17, 1096376), (19, 980968), (34, 548188), (38, 490484), (68, 274094), (76, 245242), (136, 137047), (152, 122621), (323, 57704), (646, 28852), (1292, 14426), (2584, 7213)]