220971969

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{63443}}^1$

素因数の和:63498

約数の個数: 20

約数和(自身を含む): 337775856

約数和(自身を除く): 116803887

約数列:

[1, 3, 9, 27, 43, 81, 129, 387, 1161, 3483, 63443, 190329, 570987, 1712961, 2728049, 5138883, 8184147, 24552441, 73657323, 220971969]

約数ペア:

[(1, 220971969), (3, 73657323), (9, 24552441), (27, 8184147), (43, 5138883), (81, 2728049), (129, 1712961), (387, 570987), (1161, 190329), (3483, 63443)]