21071024

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{101}}^1$

素因数の和:198

約数の個数: 80

約数和(自身を含む): 47809440

約数和(自身を除く): 26738416

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 59, 68, 101, 104, 118, 136, 202, 208, 221, 236, 272, 404, 442, 472, 767, 808, 884, 944, 1003, 1313, 1534, 1616, 1717, 1768, 2006, 2626, 3068, 3434, 3536, 4012, 5252, 5959, 6136, 6868, 8024, 10504, 11918, 12272, 13039, 13736, 16048, 21008, 22321, 23836, 26078, 27472, 44642, 47672, 52156, 77467, 89284, 95344, 101303, 104312, 154934, 178568, 202606, 208624, 309868, 357136, 405212, 619736, 810424, 1239472, 1316939, 1620848, 2633878, 5267756, 10535512, 21071024]

約数ペア:

[(1, 21071024), (2, 10535512), (4, 5267756), (8, 2633878), (13, 1620848), (16, 1316939), (17, 1239472), (26, 810424), (34, 619736), (52, 405212), (59, 357136), (68, 309868), (101, 208624), (104, 202606), (118, 178568), (136, 154934), (202, 104312), (208, 101303), (221, 95344), (236, 89284), (272, 77467), (404, 52156), (442, 47672), (472, 44642), (767, 27472), (808, 26078), (884, 23836), (944, 22321), (1003, 21008), (1313, 16048), (1534, 13736), (1616, 13039), (1717, 12272), (1768, 11918), (2006, 10504), (2626, 8024), (3068, 6868), (3434, 6136), (3536, 5959), (4012, 5252)]