11820945

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{37}}^1\times {\mathrm{59}}^1$

素因数の和:142

約数の個数: 48

約数和(自身を含む): 20848320

約数和(自身を除く): 9027375

約数列:

[1, 3, 5, 15, 19, 37, 57, 59, 95, 111, 177, 185, 285, 295, 361, 555, 703, 885, 1083, 1121, 1805, 2109, 2183, 3363, 3515, 5415, 5605, 6549, 10545, 10915, 13357, 16815, 21299, 32745, 40071, 41477, 63897, 66785, 106495, 124431, 200355, 207385, 319485, 622155, 788063, 2364189, 3940315, 11820945]

約数ペア:

[(1, 11820945), (3, 3940315), (5, 2364189), (15, 788063), (19, 622155), (37, 319485), (57, 207385), (59, 200355), (95, 124431), (111, 106495), (177, 66785), (185, 63897), (285, 41477), (295, 40071), (361, 32745), (555, 21299), (703, 16815), (885, 13357), (1083, 10915), (1121, 10545), (1805, 6549), (2109, 5605), (2183, 5415), (3363, 3515)]