19873255

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:219

約数の個数: 32

約数和(自身を含む): 26593920

約数和(自身を除く): 6720665

約数列:

[1, 5, 17, 37, 71, 85, 89, 185, 355, 445, 629, 1207, 1513, 2627, 3145, 3293, 6035, 6319, 7565, 13135, 16465, 31595, 44659, 55981, 107423, 223295, 233803, 279905, 537115, 1169015, 3974651, 19873255]

約数ペア:

[(1, 19873255), (5, 3974651), (17, 1169015), (37, 537115), (71, 279905), (85, 233803), (89, 223295), (185, 107423), (355, 55981), (445, 44659), (629, 31595), (1207, 16465), (1513, 13135), (2627, 7565), (3145, 6319), (3293, 6035)]