21245354

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{613}}^1$

素因数の和:702

約数の個数: 32

約数和(自身を含む): 36309504

約数和(自身を除く): 15064150

約数列:

[1, 2, 13, 26, 31, 43, 62, 86, 403, 559, 613, 806, 1118, 1226, 1333, 2666, 7969, 15938, 17329, 19003, 26359, 34658, 38006, 52718, 247039, 342667, 494078, 685334, 817129, 1634258, 10622677, 21245354]

約数ペア:

[(1, 21245354), (2, 10622677), (13, 1634258), (26, 817129), (31, 685334), (43, 494078), (62, 342667), (86, 247039), (403, 52718), (559, 38006), (613, 34658), (806, 26359), (1118, 19003), (1226, 17329), (1333, 15938), (2666, 7969)]