20108735997

素因数分解:

$3^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1223}}^1\times {\mathrm{4987}}^1$

素因数の和:6377

約数の個数: 32

約数和(自身を含む): 30868457472

約数和(自身を除く): 10759721475

約数列:

[1, 3, 7, 21, 157, 471, 1099, 1223, 3297, 3669, 4987, 8561, 14961, 25683, 34909, 104727, 192011, 576033, 782959, 1344077, 2348877, 4032231, 5480713, 6099101, 16442139, 18297303, 42693707, 128081121, 957558857, 2872676571, 6702911999, 20108735997]

約数ペア:

[(1, 20108735997), (3, 6702911999), (7, 2872676571), (21, 957558857), (157, 128081121), (471, 42693707), (1099, 18297303), (1223, 16442139), (3297, 6099101), (3669, 5480713), (4987, 4032231), (8561, 2348877), (14961, 1344077), (25683, 782959), (34909, 576033), (104727, 192011)]