17921485

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1$

素因数の和:237

約数の個数: 32

約数和(自身を含む): 24261120

約数和(自身を除く): 6339635

約数列:

[1, 5, 17, 23, 85, 89, 103, 115, 391, 445, 515, 1513, 1751, 1955, 2047, 2369, 7565, 8755, 9167, 10235, 11845, 34799, 40273, 45835, 155839, 173995, 201365, 210841, 779195, 1054205, 3584297, 17921485]

約数ペア:

[(1, 17921485), (5, 3584297), (17, 1054205), (23, 779195), (85, 210841), (89, 201365), (103, 173995), (115, 155839), (391, 45835), (445, 40273), (515, 34799), (1513, 11845), (1751, 10235), (1955, 9167), (2047, 8755), (2369, 7565)]