16721943

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{389}}^1$

素因数の和:511

約数の個数: 32

約数和(自身を含む): 26956800

約数和(自身を除く): 10234857

約数列:

[1, 3, 7, 21, 23, 69, 89, 161, 267, 389, 483, 623, 1167, 1869, 2047, 2723, 6141, 8169, 8947, 14329, 26841, 34621, 42987, 62629, 103863, 187887, 242347, 727041, 796283, 2388849, 5573981, 16721943]

約数ペア:

[(1, 16721943), (3, 5573981), (7, 2388849), (21, 796283), (23, 727041), (69, 242347), (89, 187887), (161, 103863), (267, 62629), (389, 42987), (483, 34621), (623, 26841), (1167, 14329), (1869, 8947), (2047, 8169), (2723, 6141)]