81986604

素因数分解:

$2^2\times 3^1\times 7^3\times {\mathrm{19919}}^1$

素因数の和:19947

約数の個数: 48

約数和(自身を含む): 223104000

約数和(自身を除く): 141117396

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 196, 294, 343, 588, 686, 1029, 1372, 2058, 4116, 19919, 39838, 59757, 79676, 119514, 139433, 239028, 278866, 418299, 557732, 836598, 976031, 1673196, 1952062, 2928093, 3904124, 5856186, 6832217, 11712372, 13664434, 20496651, 27328868, 40993302, 81986604]

約数ペア:

[(1, 81986604), (2, 40993302), (3, 27328868), (4, 20496651), (6, 13664434), (7, 11712372), (12, 6832217), (14, 5856186), (21, 3904124), (28, 2928093), (42, 1952062), (49, 1673196), (84, 976031), (98, 836598), (147, 557732), (196, 418299), (294, 278866), (343, 239028), (588, 139433), (686, 119514), (1029, 79676), (1372, 59757), (2058, 39838), (4116, 19919)]