16420383

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{3671}}^1$

素因数の和:3755

約数の個数: 24

約数和(自身を含む): 27495936

約数和(自身を除く): 11075553

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 1491, 3671, 4473, 11013, 25697, 33039, 77091, 231273, 260641, 781923, 1824487, 2345769, 5473461, 16420383]

約数ペア:

[(1, 16420383), (3, 5473461), (7, 2345769), (9, 1824487), (21, 781923), (63, 260641), (71, 231273), (213, 77091), (497, 33039), (639, 25697), (1491, 11013), (3671, 4473)]