21440193190

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{781633}}^1$

素因数の和:781864

約数の個数: 32

約数和(自身を含む): 41758014816

約数和(自身を除く): 20317821626

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 211, 422, 1055, 2110, 2743, 5486, 13715, 27430, 781633, 1563266, 3908165, 7816330, 10161229, 20322458, 50806145, 101612290, 164924563, 329849126, 824622815, 1649245630, 2144019319, 4288038638, 10720096595, 21440193190]

約数ペア:

[(1, 21440193190), (2, 10720096595), (5, 4288038638), (10, 2144019319), (13, 1649245630), (26, 824622815), (65, 329849126), (130, 164924563), (211, 101612290), (422, 50806145), (1055, 20322458), (2110, 10161229), (2743, 7816330), (5486, 3908165), (13715, 1563266), (27430, 781633)]