18396976

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{367}}^1$

素因数の和:629

約数の個数: 40

約数和(自身を含む): 38650304

約数和(自身を除く): 20253328

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 241, 367, 482, 734, 964, 1468, 1928, 2936, 3133, 3856, 4771, 5872, 6266, 9542, 12532, 19084, 25064, 38168, 50128, 76336, 88447, 176894, 353788, 707576, 1149811, 1415152, 2299622, 4599244, 9198488, 18396976]

約数ペア:

[(1, 18396976), (2, 9198488), (4, 4599244), (8, 2299622), (13, 1415152), (16, 1149811), (26, 707576), (52, 353788), (104, 176894), (208, 88447), (241, 76336), (367, 50128), (482, 38168), (734, 25064), (964, 19084), (1468, 12532), (1928, 9542), (2936, 6266), (3133, 5872), (3856, 4771)]