13878417

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{4969}}^1$

素因数の和:5005

約数の個数: 24

約数和(自身を含む): 22663200

約数和(自身を除く): 8784783

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 2793, 4969, 14907, 34783, 94411, 104349, 243481, 283233, 660877, 730443, 1982631, 4626139, 13878417]

約数ペア:

[(1, 13878417), (3, 4626139), (7, 1982631), (19, 730443), (21, 660877), (49, 283233), (57, 243481), (133, 104349), (147, 94411), (399, 34783), (931, 14907), (2793, 4969)]