21670818

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{277}}^1$

素因数の和:371

約数の個数: 64

約数和(自身を含む): 50440320

約数和(自身を除く): 28769502

約数列:

[1, 2, 3, 6, 13, 17, 26, 34, 39, 51, 59, 78, 102, 118, 177, 221, 277, 354, 442, 554, 663, 767, 831, 1003, 1326, 1534, 1662, 2006, 2301, 3009, 3601, 4602, 4709, 6018, 7202, 9418, 10803, 13039, 14127, 16343, 21606, 26078, 28254, 32686, 39117, 49029, 61217, 78234, 98058, 122434, 183651, 212459, 277831, 367302, 424918, 555662, 637377, 833493, 1274754, 1666986, 3611803, 7223606, 10835409, 21670818]

約数ペア:

[(1, 21670818), (2, 10835409), (3, 7223606), (6, 3611803), (13, 1666986), (17, 1274754), (26, 833493), (34, 637377), (39, 555662), (51, 424918), (59, 367302), (78, 277831), (102, 212459), (118, 183651), (177, 122434), (221, 98058), (277, 78234), (354, 61217), (442, 49029), (554, 39117), (663, 32686), (767, 28254), (831, 26078), (1003, 21606), (1326, 16343), (1534, 14127), (1662, 13039), (2006, 10803), (2301, 9418), (3009, 7202), (3601, 6018), (4602, 4709)]