20178247671

素因数分解:

$3^2\times {\mathrm{419}}^1\times {\mathrm{5350901}}^1$

素因数の和:5351326

約数の個数: 12

約数和(自身を含む): 29215924920

約数和(自身を除く): 9037677249

約数列:

[1, 3, 9, 419, 1257, 3771, 5350901, 16052703, 48158109, 2242027519, 6726082557, 20178247671]

約数ペア:

[(1, 20178247671), (3, 6726082557), (9, 2242027519), (419, 48158109), (1257, 16052703), (3771, 5350901)]