21091748

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{1453}}^1$

素因数の和:1667

約数の個数: 24

約数和(自身を含む): 39083520

約数和(自身を除く): 17991772

約数列:

[1, 2, 4, 19, 38, 76, 191, 382, 764, 1453, 2906, 3629, 5812, 7258, 14516, 27607, 55214, 110428, 277523, 555046, 1110092, 5272937, 10545874, 21091748]

約数ペア:

[(1, 21091748), (2, 10545874), (4, 5272937), (19, 1110092), (38, 555046), (76, 277523), (191, 110428), (382, 55214), (764, 27607), (1453, 14516), (2906, 7258), (3629, 5812)]