18792978

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{3167}}^1$

素因数の和:3238

約数の個数: 32

約数和(自身を含む): 40144896

約数和(自身を除く): 21351918

約数列:

[1, 2, 3, 6, 23, 43, 46, 69, 86, 129, 138, 258, 989, 1978, 2967, 3167, 5934, 6334, 9501, 19002, 72841, 136181, 145682, 218523, 272362, 408543, 437046, 817086, 3132163, 6264326, 9396489, 18792978]

約数ペア:

[(1, 18792978), (2, 9396489), (3, 6264326), (6, 3132163), (23, 817086), (43, 437046), (46, 408543), (69, 272362), (86, 218523), (129, 145682), (138, 136181), (258, 72841), (989, 19002), (1978, 9501), (2967, 6334), (3167, 5934)]