19982584

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{223}}^1\times {\mathrm{487}}^1$

素因数の和:739

約数の個数: 32

約数和(自身を含む): 39352320

約数和(自身を除く): 19369736

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 223, 446, 487, 892, 974, 1784, 1948, 3896, 5129, 10258, 11201, 20516, 22402, 41032, 44804, 89608, 108601, 217202, 434404, 868808, 2497823, 4995646, 9991292, 19982584]

約数ペア:

[(1, 19982584), (2, 9991292), (4, 4995646), (8, 2497823), (23, 868808), (46, 434404), (92, 217202), (184, 108601), (223, 89608), (446, 44804), (487, 41032), (892, 22402), (974, 20516), (1784, 11201), (1948, 10258), (3896, 5129)]