19626993

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{787}}^1$

素因数の和:973

約数の個数: 24

約数和(自身を含む): 30240288

約数和(自身を除く): 10613295

約数列:

[1, 3, 9, 17, 51, 153, 163, 489, 787, 1467, 2361, 2771, 7083, 8313, 13379, 24939, 40137, 120411, 128281, 384843, 1154529, 2180777, 6542331, 19626993]

約数ペア:

[(1, 19626993), (3, 6542331), (9, 2180777), (17, 1154529), (51, 384843), (153, 128281), (163, 120411), (489, 40137), (787, 24939), (1467, 13379), (2361, 8313), (2771, 7083)]