20702925369

素因数分解:

$3^2\times 7^3\times {\mathrm{19}}^1\times {\mathrm{352973}}^1$

素因数の和:353019

約数の個数: 48

約数和(自身を含む): 36709296000

約数和(自身を除く): 16006370631

約数列:

[1, 3, 7, 9, 19, 21, 49, 57, 63, 133, 147, 171, 343, 399, 441, 931, 1029, 1197, 2793, 3087, 6517, 8379, 19551, 58653, 352973, 1058919, 2470811, 3176757, 6706487, 7412433, 17295677, 20119461, 22237299, 46945409, 51887031, 60358383, 121069739, 140836227, 155661093, 328617863, 363209217, 422508681, 985853589, 1089627651, 2300325041, 2957560767, 6900975123, 20702925369]

約数ペア:

[(1, 20702925369), (3, 6900975123), (7, 2957560767), (9, 2300325041), (19, 1089627651), (21, 985853589), (49, 422508681), (57, 363209217), (63, 328617863), (133, 155661093), (147, 140836227), (171, 121069739), (343, 60358383), (399, 51887031), (441, 46945409), (931, 22237299), (1029, 20119461), (1197, 17295677), (2793, 7412433), (3087, 6706487), (6517, 3176757), (8379, 2470811), (19551, 1058919), (58653, 352973)]