29781873

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{223}}^1$

素因数の和:330

約数の個数: 48

約数和(自身を含む): 50319360

約数和(自身を除く): 20537487

約数列:

[1, 3, 9, 11, 19, 33, 57, 71, 99, 171, 209, 213, 223, 627, 639, 669, 781, 1349, 1881, 2007, 2343, 2453, 4047, 4237, 7029, 7359, 12141, 12711, 14839, 15833, 22077, 38133, 44517, 46607, 47499, 133551, 139821, 142497, 174163, 300827, 419463, 522489, 902481, 1567467, 2707443, 3309097, 9927291, 29781873]

約数ペア:

[(1, 29781873), (3, 9927291), (9, 3309097), (11, 2707443), (19, 1567467), (33, 902481), (57, 522489), (71, 419463), (99, 300827), (171, 174163), (209, 142497), (213, 139821), (223, 133551), (627, 47499), (639, 46607), (669, 44517), (781, 38133), (1349, 22077), (1881, 15833), (2007, 14839), (2343, 12711), (2453, 12141), (4047, 7359), (4237, 7029)]