20647377

素因数分解:

$3^2\times {\mathrm{89}}^1\times {\mathrm{149}}^1\times {\mathrm{173}}^1$

素因数の和:417

約数の個数: 24

約数和(自身を含む): 30537000

約数和(自身を除く): 9889623

約数列:

[1, 3, 9, 89, 149, 173, 267, 447, 519, 801, 1341, 1557, 13261, 15397, 25777, 39783, 46191, 77331, 119349, 138573, 231993, 2294153, 6882459, 20647377]

約数ペア:

[(1, 20647377), (3, 6882459), (9, 2294153), (89, 231993), (149, 138573), (173, 119349), (267, 77331), (447, 46191), (519, 39783), (801, 25777), (1341, 15397), (1557, 13261)]