21031353

素因数分解:

$3^3\times 7^1\times {\mathrm{223}}^1\times {\mathrm{499}}^1$

素因数の和:738

約数の個数: 32

約数和(自身を含む): 35840000

約数和(自身を除く): 14808647

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 223, 499, 669, 1497, 1561, 2007, 3493, 4491, 4683, 6021, 10479, 13473, 14049, 31437, 42147, 94311, 111277, 333831, 778939, 1001493, 2336817, 3004479, 7010451, 21031353]

約数ペア:

[(1, 21031353), (3, 7010451), (7, 3004479), (9, 2336817), (21, 1001493), (27, 778939), (63, 333831), (189, 111277), (223, 94311), (499, 42147), (669, 31437), (1497, 14049), (1561, 13473), (2007, 10479), (3493, 6021), (4491, 4683)]