19882008

素因数分解:

$2^3\times 3^2\times {\mathrm{461}}^1\times {\mathrm{599}}^1$

素因数の和:1072

約数の個数: 48

約数和(自身を含む): 54054000

約数和(自身を除く): 34171992

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 461, 599, 922, 1198, 1383, 1797, 1844, 2396, 2766, 3594, 3688, 4149, 4792, 5391, 5532, 7188, 8298, 10782, 11064, 14376, 16596, 21564, 33192, 43128, 276139, 552278, 828417, 1104556, 1656834, 2209112, 2485251, 3313668, 4970502, 6627336, 9941004, 19882008]

約数ペア:

[(1, 19882008), (2, 9941004), (3, 6627336), (4, 4970502), (6, 3313668), (8, 2485251), (9, 2209112), (12, 1656834), (18, 1104556), (24, 828417), (36, 552278), (72, 276139), (461, 43128), (599, 33192), (922, 21564), (1198, 16596), (1383, 14376), (1797, 11064), (1844, 10782), (2396, 8298), (2766, 7188), (3594, 5532), (3688, 5391), (4149, 4792)]