18910969

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{83}}^1\times {\mathrm{269}}^1$

素因数の和:381

約数の個数: 24

約数和(自身を含む): 24131520

約数和(自身を除く): 5220551

約数列:

[1, 7, 11, 77, 83, 121, 269, 581, 847, 913, 1883, 2959, 6391, 10043, 20713, 22327, 32549, 70301, 156289, 227843, 245597, 1719179, 2701567, 18910969]

約数ペア:

[(1, 18910969), (7, 2701567), (11, 1719179), (77, 245597), (83, 227843), (121, 156289), (269, 70301), (581, 32549), (847, 22327), (913, 20713), (1883, 10043), (2959, 6391)]