21750716

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1$

素因数の和:282

約数の個数: 48

約数和(自身を含む): 43051008

約数和(自身を除く): 21300292

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 103, 124, 131, 206, 262, 403, 412, 524, 806, 1339, 1612, 1703, 2678, 3193, 3406, 4061, 5356, 6386, 6812, 8122, 12772, 13493, 16244, 26986, 41509, 52793, 53972, 83018, 105586, 166036, 175409, 211172, 350818, 418283, 701636, 836566, 1673132, 5437679, 10875358, 21750716]

約数ペア:

[(1, 21750716), (2, 10875358), (4, 5437679), (13, 1673132), (26, 836566), (31, 701636), (52, 418283), (62, 350818), (103, 211172), (124, 175409), (131, 166036), (206, 105586), (262, 83018), (403, 53972), (412, 52793), (524, 41509), (806, 26986), (1339, 16244), (1612, 13493), (1703, 12772), (2678, 8122), (3193, 6812), (3406, 6386), (4061, 5356)]