21221388

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{20327}}^1$

素因数の和:20366

約数の個数: 36

約数和(自身を含む): 55495440

約数和(自身を除く): 34274052

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 58, 87, 116, 174, 261, 348, 522, 1044, 20327, 40654, 60981, 81308, 121962, 182943, 243924, 365886, 589483, 731772, 1178966, 1768449, 2357932, 3536898, 5305347, 7073796, 10610694, 21221388]

約数ペア:

[(1, 21221388), (2, 10610694), (3, 7073796), (4, 5305347), (6, 3536898), (9, 2357932), (12, 1768449), (18, 1178966), (29, 731772), (36, 589483), (58, 365886), (87, 243924), (116, 182943), (174, 121962), (261, 81308), (348, 60981), (522, 40654), (1044, 20327)]