21403095

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{4337}}^1$

素因数の和:4399

約数の個数: 32

約数和(自身を含む): 39979008

約数和(自身を除く): 18575913

約数列:

[1, 3, 5, 7, 15, 21, 35, 47, 105, 141, 235, 329, 705, 987, 1645, 4337, 4935, 13011, 21685, 30359, 65055, 91077, 151795, 203839, 455385, 611517, 1019195, 1426873, 3057585, 4280619, 7134365, 21403095]

約数ペア:

[(1, 21403095), (3, 7134365), (5, 4280619), (7, 3057585), (15, 1426873), (21, 1019195), (35, 611517), (47, 455385), (105, 203839), (141, 151795), (235, 91077), (329, 65055), (705, 30359), (987, 21685), (1645, 13011), (4337, 4935)]