20007477

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{233}}^1$

素因数の和:322

約数の個数: 48

約数和(自身を含む): 35043840

約数和(自身を除く): 15036363

約数列:

[1, 3, 7, 9, 21, 29, 47, 63, 87, 141, 203, 233, 261, 329, 423, 609, 699, 987, 1363, 1631, 1827, 2097, 2961, 4089, 4893, 6757, 9541, 10951, 12267, 14679, 20271, 28623, 32853, 47299, 60813, 76657, 85869, 98559, 141897, 229971, 317579, 425691, 689913, 952737, 2223053, 2858211, 6669159, 20007477]

約数ペア:

[(1, 20007477), (3, 6669159), (7, 2858211), (9, 2223053), (21, 952737), (29, 689913), (47, 425691), (63, 317579), (87, 229971), (141, 141897), (203, 98559), (233, 85869), (261, 76657), (329, 60813), (423, 47299), (609, 32853), (699, 28623), (987, 20271), (1363, 14679), (1631, 12267), (1827, 10951), (2097, 9541), (2961, 6757), (4089, 4893)]