20738214

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{83}}^1\times {\mathrm{661}}^1$

素因数の和:762

約数の個数: 64

約数和(自身を含む): 53383680

約数和(自身を除く): 32645466

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 83, 126, 166, 189, 249, 378, 498, 581, 661, 747, 1162, 1322, 1494, 1743, 1983, 2241, 3486, 3966, 4482, 4627, 5229, 5949, 9254, 10458, 11898, 13881, 15687, 17847, 27762, 31374, 35694, 41643, 54863, 83286, 109726, 124929, 164589, 249858, 329178, 384041, 493767, 768082, 987534, 1152123, 1481301, 2304246, 2962602, 3456369, 6912738, 10369107, 20738214]

約数ペア:

[(1, 20738214), (2, 10369107), (3, 6912738), (6, 3456369), (7, 2962602), (9, 2304246), (14, 1481301), (18, 1152123), (21, 987534), (27, 768082), (42, 493767), (54, 384041), (63, 329178), (83, 249858), (126, 164589), (166, 124929), (189, 109726), (249, 83286), (378, 54863), (498, 41643), (581, 35694), (661, 31374), (747, 27762), (1162, 17847), (1322, 15687), (1494, 13881), (1743, 11898), (1983, 10458), (2241, 9254), (3486, 5949), (3966, 5229), (4482, 4627)]