21370191

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{3767}}^1$

素因数の和:3862

約数の個数: 16

約数和(自身を含む): 29902848

約数和(自身を除く): 8532657

約数列:

[1, 3, 31, 61, 93, 183, 1891, 3767, 5673, 11301, 116777, 229787, 350331, 689361, 7123397, 21370191]

約数ペア:

[(1, 21370191), (3, 7123397), (31, 689361), (61, 350331), (93, 229787), (183, 116777), (1891, 11301), (3767, 5673)]