21720744

素因数分解:

$2^3\times 3^3\times {\mathrm{100559}}^1$

素因数の和:100574

約数の個数: 32

約数和(自身を含む): 60336000

約数和(自身を除く): 38615256

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 216, 100559, 201118, 301677, 402236, 603354, 804472, 905031, 1206708, 1810062, 2413416, 2715093, 3620124, 5430186, 7240248, 10860372, 21720744]

約数ペア:

[(1, 21720744), (2, 10860372), (3, 7240248), (4, 5430186), (6, 3620124), (8, 2715093), (9, 2413416), (12, 1810062), (18, 1206708), (24, 905031), (27, 804472), (36, 603354), (54, 402236), (72, 301677), (108, 201118), (216, 100559)]