20286735

素因数分解:

$3^1\times 5^1\times 7^3\times {\mathrm{3943}}^1$

素因数の和:3972

約数の個数: 32

約数和(自身を含む): 37862400

約数和(自身を除く): 17575665

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 343, 735, 1029, 1715, 3943, 5145, 11829, 19715, 27601, 59145, 82803, 138005, 193207, 414015, 579621, 966035, 1352449, 2898105, 4057347, 6762245, 20286735]

約数ペア:

[(1, 20286735), (3, 6762245), (5, 4057347), (7, 2898105), (15, 1352449), (21, 966035), (35, 579621), (49, 414015), (105, 193207), (147, 138005), (245, 82803), (343, 59145), (735, 27601), (1029, 19715), (1715, 11829), (3943, 5145)]