21083349

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{809}}^1$

素因数の和:909

約数の個数: 32

約数和(自身を含む): 34525440

約数和(自身を除く): 13442091

約数列:

[1, 3, 7, 17, 21, 51, 73, 119, 219, 357, 511, 809, 1241, 1533, 2427, 3723, 5663, 8687, 13753, 16989, 26061, 41259, 59057, 96271, 177171, 288813, 413399, 1003969, 1240197, 3011907, 7027783, 21083349]

約数ペア:

[(1, 21083349), (3, 7027783), (7, 3011907), (17, 1240197), (21, 1003969), (51, 413399), (73, 288813), (119, 177171), (219, 96271), (357, 59057), (511, 41259), (809, 26061), (1241, 16989), (1533, 13753), (2427, 8687), (3723, 5663)]