16906955

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{263}}^1$

素因数の和:347

約数の個数: 32

約数和(自身を含む): 23417856

約数和(自身を除く): 6510901

約数列:

[1, 5, 13, 23, 43, 65, 115, 215, 263, 299, 559, 989, 1315, 1495, 2795, 3419, 4945, 6049, 11309, 12857, 17095, 30245, 56545, 64285, 78637, 147017, 260107, 393185, 735085, 1300535, 3381391, 16906955]

約数ペア:

[(1, 16906955), (5, 3381391), (13, 1300535), (23, 735085), (43, 393185), (65, 260107), (115, 147017), (215, 78637), (263, 64285), (299, 56545), (559, 30245), (989, 17095), (1315, 12857), (1495, 11309), (2795, 6049), (3419, 4945)]