21471064

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{141257}}^1$

素因数の和:141282

約数の個数: 16

約数和(自身を含む): 42377400

約数和(自身を除く): 20906336

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 141257, 282514, 565028, 1130056, 2683883, 5367766, 10735532, 21471064]

約数ペア:

[(1, 21471064), (2, 10735532), (4, 5367766), (8, 2683883), (19, 1130056), (38, 565028), (76, 282514), (152, 141257)]