18465964

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{257}}^1$

素因数の和:366

約数の個数: 48

約数和(自身を含む): 37449216

約数和(自身を除く): 18983252

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 71, 92, 142, 253, 257, 284, 506, 514, 781, 1012, 1028, 1562, 1633, 2827, 3124, 3266, 5654, 5911, 6532, 11308, 11822, 17963, 18247, 23644, 35926, 36494, 65021, 71852, 72988, 130042, 200717, 260084, 401434, 419681, 802868, 839362, 1678724, 4616491, 9232982, 18465964]

約数ペア:

[(1, 18465964), (2, 9232982), (4, 4616491), (11, 1678724), (22, 839362), (23, 802868), (44, 419681), (46, 401434), (71, 260084), (92, 200717), (142, 130042), (253, 72988), (257, 71852), (284, 65021), (506, 36494), (514, 35926), (781, 23644), (1012, 18247), (1028, 17963), (1562, 11822), (1633, 11308), (2827, 6532), (3124, 5911), (3266, 5654)]