173121921

素因数分解:

$3^3\times 7^1\times {\mathrm{641}}^1\times {\mathrm{1429}}^1$

素因数の和:2086

約数の個数: 32

約数和(自身を含む): 293779200

約数和(自身を除く): 120657279

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 641, 1429, 1923, 4287, 4487, 5769, 10003, 12861, 13461, 17307, 30009, 38583, 40383, 90027, 121149, 270081, 915989, 2747967, 6411923, 8243901, 19235769, 24731703, 57707307, 173121921]

約数ペア:

[(1, 173121921), (3, 57707307), (7, 24731703), (9, 19235769), (21, 8243901), (27, 6411923), (63, 2747967), (189, 915989), (641, 270081), (1429, 121149), (1923, 90027), (4287, 40383), (4487, 38583), (5769, 30009), (10003, 17307), (12861, 13461)]