1821988077

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{2957}}^1$

素因数の和:3078

約数の個数: 64

約数和(自身を含む): 3122133504

約数和(自身を除く): 1300145427

約数列:

[1, 3, 7, 13, 21, 37, 39, 61, 91, 111, 183, 259, 273, 427, 481, 777, 793, 1281, 1443, 2257, 2379, 2957, 3367, 5551, 6771, 8871, 10101, 15799, 16653, 20699, 29341, 38441, 47397, 62097, 88023, 109409, 115323, 180377, 205387, 269087, 328227, 541131, 616161, 765863, 807261, 1262639, 1422317, 2297589, 2344901, 3787917, 4266951, 6673949, 7034703, 9956219, 16414307, 20021847, 29868657, 46717643, 49242921, 86761337, 140152929, 260284011, 607329359, 1821988077]

約数ペア:

[(1, 1821988077), (3, 607329359), (7, 260284011), (13, 140152929), (21, 86761337), (37, 49242921), (39, 46717643), (61, 29868657), (91, 20021847), (111, 16414307), (183, 9956219), (259, 7034703), (273, 6673949), (427, 4266951), (481, 3787917), (777, 2344901), (793, 2297589), (1281, 1422317), (1443, 1262639), (2257, 807261), (2379, 765863), (2957, 616161), (3367, 541131), (5551, 328227), (6771, 269087), (8871, 205387), (10101, 180377), (15799, 115323), (16653, 109409), (20699, 88023), (29341, 62097), (38441, 47397)]