21000726

素因数分解:

$2^1\times 3^2\times {\mathrm{349}}^1\times {\mathrm{3343}}^1$

素因数の和:3700

約数の個数: 24

約数和(自身を含む): 45645600

約数和(自身を除く): 24644874

約数列:

[1, 2, 3, 6, 9, 18, 349, 698, 1047, 2094, 3141, 3343, 6282, 6686, 10029, 20058, 30087, 60174, 1166707, 2333414, 3500121, 7000242, 10500363, 21000726]

約数ペア:

[(1, 21000726), (2, 10500363), (3, 7000242), (6, 3500121), (9, 2333414), (18, 1166707), (349, 60174), (698, 30087), (1047, 20058), (2094, 10029), (3141, 6686), (3343, 6282)]