21397635

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{22643}}^1$

素因数の和:22664

約数の個数: 32

約数和(自身を含む): 43476480

約数和(自身を除く): 22078845

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 22643, 67929, 113215, 158501, 203787, 339645, 475503, 611361, 792505, 1018935, 1426509, 2377515, 3056805, 4279527, 7132545, 21397635]

約数ペア:

[(1, 21397635), (3, 7132545), (5, 4279527), (7, 3056805), (9, 2377515), (15, 1426509), (21, 1018935), (27, 792505), (35, 611361), (45, 475503), (63, 339645), (105, 203787), (135, 158501), (189, 113215), (315, 67929), (945, 22643)]