19995257

素因数分解:

${\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{349}}^1$

素因数の和:472

約数の個数: 16

約数和(自身を含む): 21772800

約数和(自身を除く): 1777543

約数列:

[1, 23, 47, 53, 349, 1081, 1219, 2491, 8027, 16403, 18497, 57293, 377269, 425431, 869359, 19995257]

約数ペア:

[(1, 19995257), (23, 869359), (47, 425431), (53, 377269), (349, 57293), (1081, 18497), (1219, 16403), (2491, 8027)]