20704996

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{439}}^1\times {\mathrm{907}}^1$

素因数の和:1363

約数の個数: 24

約数和(自身を含む): 39152960

約数和(自身を除く): 18447964

約数列:

[1, 2, 4, 13, 26, 52, 439, 878, 907, 1756, 1814, 3628, 5707, 11414, 11791, 22828, 23582, 47164, 398173, 796346, 1592692, 5176249, 10352498, 20704996]

約数ペア:

[(1, 20704996), (2, 10352498), (4, 5176249), (13, 1592692), (26, 796346), (52, 398173), (439, 47164), (878, 23582), (907, 22828), (1756, 11791), (1814, 11414), (3628, 5707)]