20922902

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1493}}^1$

素因数の和:1533

約数の個数: 48

約数和(自身を含む): 42919632

約数和(自身を除く): 21996730

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 49, 77, 91, 98, 143, 154, 182, 286, 539, 637, 1001, 1078, 1274, 1493, 2002, 2986, 7007, 10451, 14014, 16423, 19409, 20902, 32846, 38818, 73157, 114961, 135863, 146314, 213499, 229922, 271726, 426998, 804727, 951041, 1494493, 1609454, 1902082, 2988986, 10461451, 20922902]

約数ペア:

[(1, 20922902), (2, 10461451), (7, 2988986), (11, 1902082), (13, 1609454), (14, 1494493), (22, 951041), (26, 804727), (49, 426998), (77, 271726), (91, 229922), (98, 213499), (143, 146314), (154, 135863), (182, 114961), (286, 73157), (539, 38818), (637, 32846), (1001, 20902), (1078, 19409), (1274, 16423), (1493, 14014), (2002, 10451), (2986, 7007)]