21706516

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{4133}}^1$

素因数の和:4251

約数の個数: 24

約数和(自身を含む): 41323464

約数和(自身を除く): 19616948

約数列:

[1, 2, 4, 13, 26, 52, 101, 202, 404, 1313, 2626, 4133, 5252, 8266, 16532, 53729, 107458, 214916, 417433, 834866, 1669732, 5426629, 10853258, 21706516]

約数ペア:

[(1, 21706516), (2, 10853258), (4, 5426629), (13, 1669732), (26, 834866), (52, 417433), (101, 214916), (202, 107458), (404, 53729), (1313, 16532), (2626, 8266), (4133, 5252)]