18399448

素因数分解:

$2^3\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{277}}^1$

素因数の和:344

約数の個数: 48

約数和(自身を含む): 38130480

約数和(自身を除く): 19731032

約数列:

[1, 2, 4, 8, 19, 23, 38, 46, 76, 92, 152, 184, 277, 361, 437, 554, 722, 874, 1108, 1444, 1748, 2216, 2888, 3496, 5263, 6371, 8303, 10526, 12742, 16606, 21052, 25484, 33212, 42104, 50968, 66424, 99997, 121049, 199994, 242098, 399988, 484196, 799976, 968392, 2299931, 4599862, 9199724, 18399448]

約数ペア:

[(1, 18399448), (2, 9199724), (4, 4599862), (8, 2299931), (19, 968392), (23, 799976), (38, 484196), (46, 399988), (76, 242098), (92, 199994), (152, 121049), (184, 99997), (277, 66424), (361, 50968), (437, 42104), (554, 33212), (722, 25484), (874, 21052), (1108, 16606), (1444, 12742), (1748, 10526), (2216, 8303), (2888, 6371), (3496, 5263)]