21000279699

素因数分解:

$3^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{3003043}}^1$

素因数の和:3003096

約数の個数: 32

約数和(自身を含む): 36517015040

約数和(自身を除く): 15516735341

約数列:

[1, 3, 7, 9, 21, 27, 37, 63, 111, 189, 259, 333, 777, 999, 2331, 6993, 3003043, 9009129, 21021301, 27027387, 63063903, 81082161, 111112591, 189191709, 333337773, 567575127, 777788137, 1000013319, 2333364411, 3000039957, 7000093233, 21000279699]

約数ペア:

[(1, 21000279699), (3, 7000093233), (7, 3000039957), (9, 2333364411), (21, 1000013319), (27, 777788137), (37, 567575127), (63, 333337773), (111, 189191709), (189, 111112591), (259, 81082161), (333, 63063903), (777, 27027387), (999, 21021301), (2331, 9009129), (6993, 3003043)]