21406693

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{317}}^1\times {\mathrm{877}}^1$

素因数の和:1212

約数の個数: 16

約数和(自身を含む): 26803584

約数和(自身を除く): 5396891

約数列:

[1, 7, 11, 77, 317, 877, 2219, 3487, 6139, 9647, 24409, 67529, 278009, 1946063, 3058099, 21406693]

約数ペア:

[(1, 21406693), (7, 3058099), (11, 1946063), (77, 278009), (317, 67529), (877, 24409), (2219, 9647), (3487, 6139)]