18065187

素因数分解:

$3^4\times 7^1\times {\mathrm{151}}^1\times {\mathrm{211}}^1$

素因数の和:381

約数の個数: 40

約数和(自身を含む): 31192832

約数和(自身を除く): 13127645

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 151, 189, 211, 453, 567, 633, 1057, 1359, 1477, 1899, 3171, 4077, 4431, 5697, 9513, 12231, 13293, 17091, 28539, 31861, 39879, 85617, 95583, 119637, 223027, 286749, 669081, 860247, 2007243, 2580741, 6021729, 18065187]

約数ペア:

[(1, 18065187), (3, 6021729), (7, 2580741), (9, 2007243), (21, 860247), (27, 669081), (63, 286749), (81, 223027), (151, 119637), (189, 95583), (211, 85617), (453, 39879), (567, 31861), (633, 28539), (1057, 17091), (1359, 13293), (1477, 12231), (1899, 9513), (3171, 5697), (4077, 4431)]