21961191

素因数分解:

$3^1\times 7^1\times {\mathrm{907}}^1\times {\mathrm{1153}}^1$

素因数の和:2070

約数の個数: 16

約数和(自身を含む): 33530624

約数和(自身を除く): 11569433

約数列:

[1, 3, 7, 21, 907, 1153, 2721, 3459, 6349, 8071, 19047, 24213, 1045771, 3137313, 7320397, 21961191]

約数ペア:

[(1, 21961191), (3, 7320397), (7, 3137313), (21, 1045771), (907, 24213), (1153, 19047), (2721, 8071), (3459, 6349)]