19992744

素因数分解:

$2^3\times 3^4\times {\mathrm{30853}}^1$

素因数の和:30871

約数の個数: 40

約数和(自身を含む): 56000010

約数和(自身を除く): 36007266

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648, 30853, 61706, 92559, 123412, 185118, 246824, 277677, 370236, 555354, 740472, 833031, 1110708, 1666062, 2221416, 2499093, 3332124, 4998186, 6664248, 9996372, 19992744]

約数ペア:

[(1, 19992744), (2, 9996372), (3, 6664248), (4, 4998186), (6, 3332124), (8, 2499093), (9, 2221416), (12, 1666062), (18, 1110708), (24, 833031), (27, 740472), (36, 555354), (54, 370236), (72, 277677), (81, 246824), (108, 185118), (162, 123412), (216, 92559), (324, 61706), (648, 30853)]