19103903

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{233}}^1$

素因数の和:323

約数の個数: 32

約数和(自身を含む): 25474176

約数和(自身を除く): 6370273

約数列:

[1, 7, 13, 17, 53, 91, 119, 221, 233, 371, 689, 901, 1547, 1631, 3029, 3961, 4823, 6307, 11713, 12349, 21203, 27727, 51493, 81991, 86443, 160537, 209933, 360451, 1123759, 1469531, 2729129, 19103903]

約数ペア:

[(1, 19103903), (7, 2729129), (13, 1469531), (17, 1123759), (53, 360451), (91, 209933), (119, 160537), (221, 86443), (233, 81991), (371, 51493), (689, 27727), (901, 21203), (1547, 12349), (1631, 11713), (3029, 6307), (3961, 4823)]