21212132

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{3533}}^1$

素因数の和:3635

約数の個数: 24

約数和(自身を含む): 39580800

約数和(自身を除く): 18368668

約数列:

[1, 2, 4, 19, 38, 76, 79, 158, 316, 1501, 3002, 3533, 6004, 7066, 14132, 67127, 134254, 268508, 279107, 558214, 1116428, 5303033, 10606066, 21212132]

約数ペア:

[(1, 21212132), (2, 10606066), (4, 5303033), (19, 1116428), (38, 558214), (76, 279107), (79, 268508), (158, 134254), (316, 67127), (1501, 14132), (3002, 7066), (3533, 6004)]