28861287

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1489}}^1$

素因数の和:1583

約数の個数: 32

約数和(自身を含む): 48061440

約数和(自身を除く): 19200153

約数列:

[1, 3, 7, 13, 21, 39, 71, 91, 213, 273, 497, 923, 1489, 1491, 2769, 4467, 6461, 10423, 19357, 19383, 31269, 58071, 105719, 135499, 317157, 406497, 740033, 1374347, 2220099, 4123041, 9620429, 28861287]

約数ペア:

[(1, 28861287), (3, 9620429), (7, 4123041), (13, 2220099), (21, 1374347), (39, 740033), (71, 406497), (91, 317157), (213, 135499), (273, 105719), (497, 58071), (923, 31269), (1489, 19383), (1491, 19357), (2769, 10423), (4467, 6461)]