21755487

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{607}}^1\times {\mathrm{919}}^1$

素因数の和:1542

約数の個数: 16

約数和(自身を含む): 31324160

約数和(自身を除く): 9568673

約数列:

[1, 3, 13, 39, 607, 919, 1821, 2757, 7891, 11947, 23673, 35841, 557833, 1673499, 7251829, 21755487]

約数ペア:

[(1, 21755487), (3, 7251829), (13, 1673499), (39, 557833), (607, 35841), (919, 23673), (1821, 11947), (2757, 7891)]