19772970

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{13451}}^1$

素因数の和:13475

約数の個数: 48

約数和(自身を含む): 55207008

約数和(自身を除く): 35434038

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 490, 735, 1470, 13451, 26902, 40353, 67255, 80706, 94157, 134510, 188314, 201765, 282471, 403530, 470785, 564942, 659099, 941570, 1318198, 1412355, 1977297, 2824710, 3295495, 3954594, 6590990, 9886485, 19772970]

約数ペア:

[(1, 19772970), (2, 9886485), (3, 6590990), (5, 3954594), (6, 3295495), (7, 2824710), (10, 1977297), (14, 1412355), (15, 1318198), (21, 941570), (30, 659099), (35, 564942), (42, 470785), (49, 403530), (70, 282471), (98, 201765), (105, 188314), (147, 134510), (210, 94157), (245, 80706), (294, 67255), (490, 40353), (735, 26902), (1470, 13451)]