20967284

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{13007}}^1$

素因数の和:13055

約数の個数: 24

約数和(自身を含む): 40793088

約数和(自身を除く): 19825804

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 403, 806, 1612, 13007, 26014, 52028, 169091, 338182, 403217, 676364, 806434, 1612868, 5241821, 10483642, 20967284]

約数ペア:

[(1, 20967284), (2, 10483642), (4, 5241821), (13, 1612868), (26, 806434), (31, 676364), (52, 403217), (62, 338182), (124, 169091), (403, 52028), (806, 26014), (1612, 13007)]