209047671

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{409}}^1$

素因数の和:509

約数の個数: 72

約数和(自身を含む): 376724400

約数和(自身を除く): 167676729

約数列:

[1, 3, 7, 9, 19, 21, 49, 57, 61, 63, 133, 147, 171, 183, 399, 409, 427, 441, 549, 931, 1159, 1197, 1227, 1281, 2793, 2863, 2989, 3477, 3681, 3843, 7771, 8113, 8379, 8589, 8967, 10431, 20041, 23313, 24339, 24949, 25767, 26901, 54397, 56791, 60123, 69939, 73017, 74847, 163191, 170373, 174643, 180369, 224541, 380779, 474031, 489573, 511119, 523929, 1142337, 1222501, 1422093, 1571787, 3318217, 3427011, 3667503, 4266279, 9954651, 11002509, 23227519, 29863953, 69682557, 209047671]

約数ペア:

[(1, 209047671), (3, 69682557), (7, 29863953), (9, 23227519), (19, 11002509), (21, 9954651), (49, 4266279), (57, 3667503), (61, 3427011), (63, 3318217), (133, 1571787), (147, 1422093), (171, 1222501), (183, 1142337), (399, 523929), (409, 511119), (427, 489573), (441, 474031), (549, 380779), (931, 224541), (1159, 180369), (1197, 174643), (1227, 170373), (1281, 163191), (2793, 74847), (2863, 73017), (2989, 69939), (3477, 60123), (3681, 56791), (3843, 54397), (7771, 26901), (8113, 25767), (8379, 24949), (8589, 24339), (8967, 23313), (10431, 20041)]