21349768

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{113}}^2$

素因数の和:262

約数の個数: 48

約数和(自身を含む): 46378800

約数和(自身を除く): 25029032

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 113, 152, 209, 226, 418, 452, 836, 904, 1243, 1672, 2147, 2486, 4294, 4972, 8588, 9944, 12769, 17176, 23617, 25538, 47234, 51076, 94468, 102152, 140459, 188936, 242611, 280918, 485222, 561836, 970444, 1123672, 1940888, 2668721, 5337442, 10674884, 21349768]

約数ペア:

[(1, 21349768), (2, 10674884), (4, 5337442), (8, 2668721), (11, 1940888), (19, 1123672), (22, 970444), (38, 561836), (44, 485222), (76, 280918), (88, 242611), (113, 188936), (152, 140459), (209, 102152), (226, 94468), (418, 51076), (452, 47234), (836, 25538), (904, 23617), (1243, 17176), (1672, 12769), (2147, 9944), (2486, 8588), (4294, 4972)]