21938331

素因数分解:

$3^1\times {\mathrm{19}}^2\times {\mathrm{47}}^1\times {\mathrm{431}}^1$

素因数の和:519

約数の個数: 24

約数和(自身を含む): 31601664

約数和(自身を除く): 9663333

約数列:

[1, 3, 19, 47, 57, 141, 361, 431, 893, 1083, 1293, 2679, 8189, 16967, 20257, 24567, 50901, 60771, 155591, 384883, 466773, 1154649, 7312777, 21938331]

約数ペア:

[(1, 21938331), (3, 7312777), (19, 1154649), (47, 466773), (57, 384883), (141, 155591), (361, 60771), (431, 50901), (893, 24567), (1083, 20257), (1293, 16967), (2679, 8189)]