18219448

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{733}}^1$

素因数の和:991

約数の個数: 32

約数和(自身を含む): 36993600

約数和(自身を除く): 18774152

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 239, 478, 733, 956, 1466, 1912, 2932, 3107, 5864, 6214, 9529, 12428, 19058, 24856, 38116, 76232, 175187, 350374, 700748, 1401496, 2277431, 4554862, 9109724, 18219448]

約数ペア:

[(1, 18219448), (2, 9109724), (4, 4554862), (8, 2277431), (13, 1401496), (26, 700748), (52, 350374), (104, 175187), (239, 76232), (478, 38116), (733, 24856), (956, 19058), (1466, 12428), (1912, 9529), (2932, 6214), (3107, 5864)]