18704816

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{4733}}^1$

素因数の和:4773

約数の個数: 40

約数和(自身を含む): 41091120

約数和(自身を除く): 22386304

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1976, 3952, 4733, 9466, 18932, 37864, 61529, 75728, 89927, 123058, 179854, 246116, 359708, 492232, 719416, 984464, 1169051, 1438832, 2338102, 4676204, 9352408, 18704816]

約数ペア:

[(1, 18704816), (2, 9352408), (4, 4676204), (8, 2338102), (13, 1438832), (16, 1169051), (19, 984464), (26, 719416), (38, 492232), (52, 359708), (76, 246116), (104, 179854), (152, 123058), (208, 89927), (247, 75728), (304, 61529), (494, 37864), (988, 18932), (1976, 9466), (3952, 4733)]