21945735

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{7741}}^1$

素因数の和:7765

約数の個数: 40

約数和(自身を含む): 44965536

約数和(自身を除く): 23019801

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 81, 105, 135, 189, 315, 405, 567, 945, 2835, 7741, 23223, 38705, 54187, 69669, 116115, 162561, 209007, 270935, 348345, 487683, 627021, 812805, 1045035, 1463049, 2438415, 3135105, 4389147, 7315245, 21945735]

約数ペア:

[(1, 21945735), (3, 7315245), (5, 4389147), (7, 3135105), (9, 2438415), (15, 1463049), (21, 1045035), (27, 812805), (35, 627021), (45, 487683), (63, 348345), (81, 270935), (105, 209007), (135, 162561), (189, 116115), (315, 69669), (405, 54187), (567, 38705), (945, 23223), (2835, 7741)]