18901336

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{107}}^1\times {\mathrm{311}}^1$

素因数の和:495

約数の個数: 32

約数和(自身を含む): 36391680

約数和(自身を除く): 17490344

約数列:

[1, 2, 4, 8, 71, 107, 142, 214, 284, 311, 428, 568, 622, 856, 1244, 2488, 7597, 15194, 22081, 30388, 33277, 44162, 60776, 66554, 88324, 133108, 176648, 266216, 2362667, 4725334, 9450668, 18901336]

約数ペア:

[(1, 18901336), (2, 9450668), (4, 4725334), (8, 2362667), (71, 266216), (107, 176648), (142, 133108), (214, 88324), (284, 66554), (311, 60776), (428, 44162), (568, 33277), (622, 30388), (856, 22081), (1244, 15194), (2488, 7597)]