20380671

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{4297}}^1$

素因数の和:4351

約数の個数: 24

約数和(自身を含む): 32183424

約数和(自身を除く): 11802753

約数列:

[1, 3, 9, 17, 31, 51, 93, 153, 279, 527, 1581, 4297, 4743, 12891, 38673, 73049, 133207, 219147, 399621, 657441, 1198863, 2264519, 6793557, 20380671]

約数ペア:

[(1, 20380671), (3, 6793557), (9, 2264519), (17, 1198863), (31, 657441), (51, 399621), (93, 219147), (153, 133207), (279, 73049), (527, 38673), (1581, 12891), (4297, 4743)]