20151519

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{9421}}^1$

素因数の和:9478

約数の個数: 16

約数和(自身を含む): 28944384

約数和(自身を除く): 8792865

約数列:

[1, 3, 23, 31, 69, 93, 713, 2139, 9421, 28263, 216683, 292051, 650049, 876153, 6717173, 20151519]

約数ペア:

[(1, 20151519), (3, 6717173), (23, 876153), (31, 650049), (69, 292051), (93, 216683), (713, 28263), (2139, 9421)]