18689692

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{43}}^2$

素因数の和:135

約数の個数: 54

約数和(自身を含む): 40389048

約数和(自身を除く): 21699356

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 43, 76, 86, 133, 172, 266, 301, 361, 532, 602, 722, 817, 1204, 1444, 1634, 1849, 2527, 3268, 3698, 5054, 5719, 7396, 10108, 11438, 12943, 15523, 22876, 25886, 31046, 35131, 51772, 62092, 70262, 108661, 140524, 217322, 245917, 434644, 491834, 667489, 983668, 1334978, 2669956, 4672423, 9344846, 18689692]

約数ペア:

[(1, 18689692), (2, 9344846), (4, 4672423), (7, 2669956), (14, 1334978), (19, 983668), (28, 667489), (38, 491834), (43, 434644), (76, 245917), (86, 217322), (133, 140524), (172, 108661), (266, 70262), (301, 62092), (361, 51772), (532, 35131), (602, 31046), (722, 25886), (817, 22876), (1204, 15523), (1444, 12943), (1634, 11438), (1849, 10108), (2527, 7396), (3268, 5719), (3698, 5054)]