20421093

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{173}}^1$

素因数の和:274

約数の個数: 48

約数和(自身を含む): 35228736

約数和(自身を除く): 14807643

約数列:

[1, 3, 7, 11, 21, 33, 49, 73, 77, 147, 173, 219, 231, 511, 519, 539, 803, 1211, 1533, 1617, 1903, 2409, 3577, 3633, 5621, 5709, 8477, 10731, 12629, 13321, 16863, 25431, 37887, 39347, 39963, 88403, 93247, 118041, 138919, 265209, 279741, 416757, 618821, 972433, 1856463, 2917299, 6807031, 20421093]

約数ペア:

[(1, 20421093), (3, 6807031), (7, 2917299), (11, 1856463), (21, 972433), (33, 618821), (49, 416757), (73, 279741), (77, 265209), (147, 138919), (173, 118041), (219, 93247), (231, 88403), (511, 39963), (519, 39347), (539, 37887), (803, 25431), (1211, 16863), (1533, 13321), (1617, 12629), (1903, 10731), (2409, 8477), (3577, 5709), (3633, 5621)]