18817504993

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{853}}^1\times {\mathrm{1877}}^1$

素因数の和:2833

約数の個数: 32

約数和(自身を含む): 22786960896

約数和(自身を除く): 3969455903

約数列:

[1, 7, 23, 73, 161, 511, 853, 1679, 1877, 5971, 11753, 13139, 19619, 43171, 62269, 137021, 137333, 302197, 435883, 959147, 1432187, 1601081, 3151483, 10025309, 11207567, 22060381, 36824863, 116878913, 257774041, 818152391, 2688214999, 18817504993]

約数ペア:

[(1, 18817504993), (7, 2688214999), (23, 818152391), (73, 257774041), (161, 116878913), (511, 36824863), (853, 22060381), (1679, 11207567), (1877, 10025309), (5971, 3151483), (11753, 1601081), (13139, 1432187), (19619, 959147), (43171, 435883), (62269, 302197), (137021, 137333)]