388581921

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{1777}}^1$

素因数の和:1895

約数の個数: 64

約数和(自身を含む): 716889600

約数和(自身を除く): 328307679

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 89, 91, 117, 189, 267, 273, 351, 623, 801, 819, 1157, 1777, 1869, 2403, 2457, 3471, 5331, 5607, 8099, 10413, 12439, 15993, 16821, 23101, 24297, 31239, 37317, 47979, 69303, 72891, 111951, 158153, 161707, 207909, 218673, 335853, 474459, 485121, 623727, 1107071, 1423377, 1455363, 2055989, 3321213, 4270131, 4366089, 6167967, 9963639, 14391923, 18503901, 29890917, 43175769, 55511703, 129527307, 388581921]

約数ペア:

[(1, 388581921), (3, 129527307), (7, 55511703), (9, 43175769), (13, 29890917), (21, 18503901), (27, 14391923), (39, 9963639), (63, 6167967), (89, 4366089), (91, 4270131), (117, 3321213), (189, 2055989), (267, 1455363), (273, 1423377), (351, 1107071), (623, 623727), (801, 485121), (819, 474459), (1157, 335853), (1777, 218673), (1869, 207909), (2403, 161707), (2457, 158153), (3471, 111951), (5331, 72891), (5607, 69303), (8099, 47979), (10413, 37317), (12439, 31239), (15993, 24297), (16821, 23101)]