21697552018

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{3154631}}^1$

素因数の和:3154833

約数の個数: 16

約数和(自身を含む): 34448581440

約数和(自身を除く): 12751029422

約数列:

[1, 2, 19, 38, 181, 362, 3439, 6878, 3154631, 6309262, 59937989, 119875978, 570988211, 1141976422, 10848776009, 21697552018]

約数ペア:

[(1, 21697552018), (2, 10848776009), (19, 1141976422), (38, 570988211), (181, 119875978), (362, 59937989), (3439, 6309262), (6878, 3154631)]