18399368

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{439}}^1$

素因数の和:502

約数の個数: 48

約数和(自身を含む): 38649600

約数和(自身を除く): 20250232

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 169, 248, 338, 403, 439, 676, 806, 878, 1352, 1612, 1756, 3224, 3512, 5239, 5707, 10478, 11414, 13609, 20956, 22828, 27218, 41912, 45656, 54436, 74191, 108872, 148382, 176917, 296764, 353834, 593528, 707668, 1415336, 2299921, 4599842, 9199684, 18399368]

約数ペア:

[(1, 18399368), (2, 9199684), (4, 4599842), (8, 2299921), (13, 1415336), (26, 707668), (31, 593528), (52, 353834), (62, 296764), (104, 176917), (124, 148382), (169, 108872), (248, 74191), (338, 54436), (403, 45656), (439, 41912), (676, 27218), (806, 22828), (878, 20956), (1352, 13609), (1612, 11414), (1756, 10478), (3224, 5707), (3512, 5239)]