20665398

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{307}}^1\times {\mathrm{863}}^1$

素因数の和:1188

約数の個数: 32

約数和(自身を含む): 44706816

約数和(自身を除く): 24041418

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 307, 614, 863, 921, 1726, 1842, 2589, 3991, 5178, 7982, 11219, 11973, 22438, 23946, 33657, 67314, 264941, 529882, 794823, 1589646, 3444233, 6888466, 10332699, 20665398]

約数ペア:

[(1, 20665398), (2, 10332699), (3, 6888466), (6, 3444233), (13, 1589646), (26, 794823), (39, 529882), (78, 264941), (307, 67314), (614, 33657), (863, 23946), (921, 22438), (1726, 11973), (1842, 11219), (2589, 7982), (3991, 5178)]