1821807

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{677}}^1$

素因数の和:719

約数の個数: 24

約数和(自身を含む): 2961504

約数和(自身を除く): 1139697

約数列:

[1, 3, 9, 13, 23, 39, 69, 117, 207, 299, 677, 897, 2031, 2691, 6093, 8801, 15571, 26403, 46713, 79209, 140139, 202423, 607269, 1821807]

約数ペア:

[(1, 1821807), (3, 607269), (9, 202423), (13, 140139), (23, 79209), (39, 46713), (69, 26403), (117, 15571), (207, 8801), (299, 6093), (677, 2691), (897, 2031)]