18940554

素因数分解:

$2^1\times 3^4\times {\mathrm{43}}^1\times {\mathrm{2719}}^1$

素因数の和:2776

約数の個数: 40

約数和(自身を含む): 43443840

約数和(自身を除く): 24503286

約数列:

[1, 2, 3, 6, 9, 18, 27, 43, 54, 81, 86, 129, 162, 258, 387, 774, 1161, 2322, 2719, 3483, 5438, 6966, 8157, 16314, 24471, 48942, 73413, 116917, 146826, 220239, 233834, 350751, 440478, 701502, 1052253, 2104506, 3156759, 6313518, 9470277, 18940554]

約数ペア:

[(1, 18940554), (2, 9470277), (3, 6313518), (6, 3156759), (9, 2104506), (18, 1052253), (27, 701502), (43, 440478), (54, 350751), (81, 233834), (86, 220239), (129, 146826), (162, 116917), (258, 73413), (387, 48942), (774, 24471), (1161, 16314), (2322, 8157), (2719, 6966), (3483, 5438)]