21065954

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{283}}^1\times {\mathrm{409}}^1$

素因数の和:714

約数の個数: 32

約数和(自身を含む): 39123840

約数和(自身を除く): 18057886

約数列:

[1, 2, 7, 13, 14, 26, 91, 182, 283, 409, 566, 818, 1981, 2863, 3679, 3962, 5317, 5726, 7358, 10634, 25753, 37219, 51506, 74438, 115747, 231494, 810229, 1504711, 1620458, 3009422, 10532977, 21065954]

約数ペア:

[(1, 21065954), (2, 10532977), (7, 3009422), (13, 1620458), (14, 1504711), (26, 810229), (91, 231494), (182, 115747), (283, 74438), (409, 51506), (566, 37219), (818, 25753), (1981, 10634), (2863, 7358), (3679, 5726), (3962, 5317)]