28156920921

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{1009}}^1\times {\mathrm{14557}}^1$

素因数の和:15646

約数の個数: 32

約数和(自身を含む): 42346310400

約数和(自身を除く): 14189389479

約数列:

[1, 3, 9, 27, 71, 213, 639, 1009, 1917, 3027, 9081, 14557, 27243, 43671, 71639, 131013, 214917, 393039, 644751, 1033547, 1934253, 3100641, 9301923, 14688013, 27905769, 44064039, 132192117, 396576351, 1042848923, 3128546769, 9385640307, 28156920921]

約数ペア:

[(1, 28156920921), (3, 9385640307), (9, 3128546769), (27, 1042848923), (71, 396576351), (213, 132192117), (639, 44064039), (1009, 27905769), (1917, 14688013), (3027, 9301923), (9081, 3100641), (14557, 1934253), (27243, 1033547), (43671, 644751), (71639, 393039), (131013, 214917)]