21974792

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^2\times {\mathrm{1087}}^1$

素因数の和:1138

約数の個数: 48

約数和(自身を含む): 49743360

約数和(自身を除く): 27768568

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 266, 361, 532, 722, 1064, 1087, 1444, 2174, 2527, 2888, 4348, 5054, 7609, 8696, 10108, 15218, 20216, 20653, 30436, 41306, 60872, 82612, 144571, 165224, 289142, 392407, 578284, 784814, 1156568, 1569628, 2746849, 3139256, 5493698, 10987396, 21974792]

約数ペア:

[(1, 21974792), (2, 10987396), (4, 5493698), (7, 3139256), (8, 2746849), (14, 1569628), (19, 1156568), (28, 784814), (38, 578284), (56, 392407), (76, 289142), (133, 165224), (152, 144571), (266, 82612), (361, 60872), (532, 41306), (722, 30436), (1064, 20653), (1087, 20216), (1444, 15218), (2174, 10108), (2527, 8696), (2888, 7609), (4348, 5054)]