18719493

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{509}}^1$

素因数の和:589

約数の個数: 32

約数和(自身を含む): 28788480

約数和(自身を除く): 10068987

約数列:

[1, 3, 13, 23, 39, 41, 69, 123, 299, 509, 533, 897, 943, 1527, 1599, 2829, 6617, 11707, 12259, 19851, 20869, 35121, 36777, 62607, 152191, 271297, 456573, 479987, 813891, 1439961, 6239831, 18719493]

約数ペア:

[(1, 18719493), (3, 6239831), (13, 1439961), (23, 813891), (39, 479987), (41, 456573), (69, 271297), (123, 152191), (299, 62607), (509, 36777), (533, 35121), (897, 20869), (943, 19851), (1527, 12259), (1599, 11707), (2829, 6617)]