21056892794

素因数分解:

$2^1\times 7^3\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{19919}}^1$

素因数の和:20032

約数の個数: 64

約数和(自身を含む): 39011328000

約数和(自身を除く): 17954435206

約数列:

[1, 2, 7, 14, 23, 46, 49, 67, 98, 134, 161, 322, 343, 469, 686, 938, 1127, 1541, 2254, 3082, 3283, 6566, 7889, 10787, 15778, 19919, 21574, 22981, 39838, 45962, 75509, 139433, 151018, 278866, 458137, 528563, 916274, 976031, 1057126, 1334573, 1952062, 2669146, 3206959, 6413918, 6832217, 9342011, 13664434, 18684022, 22448713, 30695179, 44897426, 61390358, 65394077, 130788154, 157140991, 214866253, 314281982, 429732506, 457758539, 915517078, 1504063771, 3008127542, 10528446397, 21056892794]

約数ペア:

[(1, 21056892794), (2, 10528446397), (7, 3008127542), (14, 1504063771), (23, 915517078), (46, 457758539), (49, 429732506), (67, 314281982), (98, 214866253), (134, 157140991), (161, 130788154), (322, 65394077), (343, 61390358), (469, 44897426), (686, 30695179), (938, 22448713), (1127, 18684022), (1541, 13664434), (2254, 9342011), (3082, 6832217), (3283, 6413918), (6566, 3206959), (7889, 2669146), (10787, 1952062), (15778, 1334573), (19919, 1057126), (21574, 976031), (22981, 916274), (39838, 528563), (45962, 458137), (75509, 278866), (139433, 151018)]