20479360209

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1171}}^1\times {\mathrm{75709}}^1$

素因数の和:76901

約数の個数: 32

約数和(自身を含む): 34073134080

約数和(自身を除く): 13593773871

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 1171, 3513, 8197, 12881, 24591, 38643, 75709, 90167, 227127, 270501, 529963, 832799, 1589889, 2498397, 5829593, 17488779, 88655239, 265965717, 620586673, 975207629, 1861760019, 2925622887, 6826453403, 20479360209]

約数ペア:

[(1, 20479360209), (3, 6826453403), (7, 2925622887), (11, 1861760019), (21, 975207629), (33, 620586673), (77, 265965717), (231, 88655239), (1171, 17488779), (3513, 5829593), (8197, 2498397), (12881, 1589889), (24591, 832799), (38643, 529963), (75709, 270501), (90167, 227127)]