201721947

素因数分解:

$3^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{95107}}^1$

素因数の和:95218

約数の個数: 16

約数和(自身を含む): 310432512

約数和(自身を除く): 108710565

約数列:

[1, 3, 7, 21, 101, 303, 707, 2121, 95107, 285321, 665749, 1997247, 9605807, 28817421, 67240649, 201721947]

約数ペア:

[(1, 201721947), (3, 67240649), (7, 28817421), (21, 9605807), (101, 1997247), (303, 665749), (707, 285321), (2121, 95107)]