20739932

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{173}}^1$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 40515552

約数和(自身を除く): 19775620

約数列:

[1, 2, 4, 17, 34, 41, 43, 68, 82, 86, 164, 172, 173, 346, 692, 697, 731, 1394, 1462, 1763, 2788, 2924, 2941, 3526, 5882, 7052, 7093, 7439, 11764, 14186, 14878, 28372, 29756, 29971, 59942, 119884, 120581, 126463, 241162, 252926, 304999, 482324, 505852, 609998, 1219996, 5184983, 10369966, 20739932]

約数ペア:

[(1, 20739932), (2, 10369966), (4, 5184983), (17, 1219996), (34, 609998), (41, 505852), (43, 482324), (68, 304999), (82, 252926), (86, 241162), (164, 126463), (172, 120581), (173, 119884), (346, 59942), (692, 29971), (697, 29756), (731, 28372), (1394, 14878), (1462, 14186), (1763, 11764), (2788, 7439), (2924, 7093), (2941, 7052), (3526, 5882)]