18763336

素因数分解:

$2^3\times {\mathrm{19}}^2\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:206

約数の個数: 48

約数和(自身を含む): 38061900

約数和(自身を除く): 19298564

約数列:

[1, 2, 4, 8, 19, 38, 73, 76, 89, 146, 152, 178, 292, 356, 361, 584, 712, 722, 1387, 1444, 1691, 2774, 2888, 3382, 5548, 6497, 6764, 11096, 12994, 13528, 25988, 26353, 32129, 51976, 52706, 64258, 105412, 123443, 128516, 210824, 246886, 257032, 493772, 987544, 2345417, 4690834, 9381668, 18763336]

約数ペア:

[(1, 18763336), (2, 9381668), (4, 4690834), (8, 2345417), (19, 987544), (38, 493772), (73, 257032), (76, 246886), (89, 210824), (146, 128516), (152, 123443), (178, 105412), (292, 64258), (356, 52706), (361, 51976), (584, 32129), (712, 26353), (722, 25988), (1387, 13528), (1444, 12994), (1691, 11096), (2774, 6764), (2888, 6497), (3382, 5548)]