2191455

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{773}}^1$

素因数の和:797

約数の個数: 40

約数和(自身を含む): 4495392

約数和(自身を除く): 2303937

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 81, 105, 135, 189, 315, 405, 567, 773, 945, 2319, 2835, 3865, 5411, 6957, 11595, 16233, 20871, 27055, 34785, 48699, 62613, 81165, 104355, 146097, 243495, 313065, 438291, 730485, 2191455]

約数ペア:

[(1, 2191455), (3, 730485), (5, 438291), (7, 313065), (9, 243495), (15, 146097), (21, 104355), (27, 81165), (35, 62613), (45, 48699), (63, 34785), (81, 27055), (105, 20871), (135, 16233), (189, 11595), (315, 6957), (405, 5411), (567, 3865), (773, 2835), (945, 2319)]