840507921

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{379}}^1$

素因数の和:552

約数の個数: 80

約数和(自身を含む): 1456646400

約数和(自身を除く): 616138479

約数列:

[1, 3, 9, 11, 19, 27, 33, 57, 81, 99, 131, 171, 209, 297, 379, 393, 513, 627, 891, 1137, 1179, 1441, 1539, 1881, 2489, 3411, 3537, 4169, 4323, 5643, 7201, 7467, 10233, 10611, 12507, 12969, 16929, 21603, 22401, 27379, 30699, 37521, 38907, 49649, 64809, 67203, 79211, 82137, 112563, 116721, 148947, 194427, 201609, 237633, 246411, 337689, 446841, 546139, 583281, 712899, 739233, 943331, 1340523, 1638417, 2138697, 2217699, 2829993, 4021569, 4915251, 6416091, 8489979, 10376641, 14745753, 25469937, 31129923, 44237259, 76409811, 93389769, 280169307, 840507921]

約数ペア:

[(1, 840507921), (3, 280169307), (9, 93389769), (11, 76409811), (19, 44237259), (27, 31129923), (33, 25469937), (57, 14745753), (81, 10376641), (99, 8489979), (131, 6416091), (171, 4915251), (209, 4021569), (297, 2829993), (379, 2217699), (393, 2138697), (513, 1638417), (627, 1340523), (891, 943331), (1137, 739233), (1179, 712899), (1441, 583281), (1539, 546139), (1881, 446841), (2489, 337689), (3411, 246411), (3537, 237633), (4169, 201609), (4323, 194427), (5643, 148947), (7201, 116721), (7467, 112563), (10233, 82137), (10611, 79211), (12507, 67203), (12969, 64809), (16929, 49649), (21603, 38907), (22401, 37521), (27379, 30699)]