18959787

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{251}}^1$

素因数の和:384

約数の個数: 48

約数和(自身を含む): 34594560

約数和(自身を除く): 15634773

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 109, 231, 251, 327, 693, 753, 763, 981, 1199, 1757, 2259, 2289, 2761, 3597, 5271, 6867, 8283, 8393, 10791, 15813, 19327, 24849, 25179, 27359, 57981, 75537, 82077, 173943, 191513, 246231, 300949, 574539, 902847, 1723617, 2106643, 2708541, 6319929, 18959787]

約数ペア:

[(1, 18959787), (3, 6319929), (7, 2708541), (9, 2106643), (11, 1723617), (21, 902847), (33, 574539), (63, 300949), (77, 246231), (99, 191513), (109, 173943), (231, 82077), (251, 75537), (327, 57981), (693, 27359), (753, 25179), (763, 24849), (981, 19327), (1199, 15813), (1757, 10791), (2259, 8393), (2289, 8283), (2761, 6867), (3597, 5271)]