19719117

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{409}}^1\times {\mathrm{487}}^1$

素因数の和:913

約数の個数: 24

約数和(自身を含む): 31212480

約数和(自身を除く): 11493363

約数列:

[1, 3, 9, 11, 33, 99, 409, 487, 1227, 1461, 3681, 4383, 4499, 5357, 13497, 16071, 40491, 48213, 199183, 597549, 1792647, 2191013, 6573039, 19719117]

約数ペア:

[(1, 19719117), (3, 6573039), (9, 2191013), (11, 1792647), (33, 597549), (99, 199183), (409, 48213), (487, 40491), (1227, 16071), (1461, 13497), (3681, 5357), (4383, 4499)]