172912817

素因数分解:

$7^4\times {\mathrm{11}}^1\times {\mathrm{6547}}^1$

素因数の和:6586

約数の個数: 20

約数和(自身を含む): 220091376

約数和(自身を除く): 47178559

約数列:

[1, 7, 11, 49, 77, 343, 539, 2401, 3773, 6547, 26411, 45829, 72017, 320803, 504119, 2245621, 3528833, 15719347, 24701831, 172912817]

約数ペア:

[(1, 172912817), (7, 24701831), (11, 15719347), (49, 3528833), (77, 2245621), (343, 504119), (539, 320803), (2401, 72017), (3773, 45829), (6547, 26411)]