19564083

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1$

素因数の和:177

約数の個数: 72

約数和(自身を含む): 37168560

約数和(自身を除く): 17604477

約数列:

[1, 3, 7, 9, 11, 21, 33, 37, 49, 63, 77, 99, 109, 111, 147, 231, 259, 327, 333, 407, 441, 539, 693, 763, 777, 981, 1199, 1221, 1617, 1813, 2289, 2331, 2849, 3597, 3663, 4033, 4851, 5341, 5439, 6867, 8393, 8547, 10791, 12099, 16023, 16317, 19943, 25179, 25641, 28231, 36297, 44363, 48069, 58751, 59829, 75537, 84693, 133089, 176253, 179487, 197617, 254079, 310541, 399267, 528759, 592851, 931623, 1778553, 2173787, 2794869, 6521361, 19564083]

約数ペア:

[(1, 19564083), (3, 6521361), (7, 2794869), (9, 2173787), (11, 1778553), (21, 931623), (33, 592851), (37, 528759), (49, 399267), (63, 310541), (77, 254079), (99, 197617), (109, 179487), (111, 176253), (147, 133089), (231, 84693), (259, 75537), (327, 59829), (333, 58751), (407, 48069), (441, 44363), (539, 36297), (693, 28231), (763, 25641), (777, 25179), (981, 19943), (1199, 16317), (1221, 16023), (1617, 12099), (1813, 10791), (2289, 8547), (2331, 8393), (2849, 6867), (3597, 5439), (3663, 5341), (4033, 4851)]