19470997

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{109}}^1\times {\mathrm{151}}^1$

素因数の和:293

約数の個数: 24

約数和(自身を含む): 24478080

約数和(自身を除く): 5007083

約数列:

[1, 7, 13, 91, 109, 151, 169, 763, 1057, 1183, 1417, 1963, 9919, 13741, 16459, 18421, 25519, 115213, 128947, 178633, 213967, 1497769, 2781571, 19470997]

約数ペア:

[(1, 19470997), (7, 2781571), (13, 1497769), (91, 213967), (109, 178633), (151, 128947), (169, 115213), (763, 25519), (1057, 18421), (1183, 16459), (1417, 13741), (1963, 9919)]