206811579

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{59}}^1\times {\mathrm{311}}^1$

素因数の和:420

約数の個数: 48

約数和(自身を含む): 321834240

約数和(自身を除く): 115022661

約数列:

[1, 3, 13, 17, 39, 51, 59, 177, 221, 289, 311, 663, 767, 867, 933, 1003, 2301, 3009, 3757, 4043, 5287, 11271, 12129, 13039, 15861, 17051, 18349, 39117, 51153, 55047, 68731, 89879, 206193, 221663, 238537, 269637, 311933, 664989, 715611, 935799, 1168427, 3505281, 4055129, 5302861, 12165387, 15908583, 68937193, 206811579]

約数ペア:

[(1, 206811579), (3, 68937193), (13, 15908583), (17, 12165387), (39, 5302861), (51, 4055129), (59, 3505281), (177, 1168427), (221, 935799), (289, 715611), (311, 664989), (663, 311933), (767, 269637), (867, 238537), (933, 221663), (1003, 206193), (2301, 89879), (3009, 68731), (3757, 55047), (4043, 51153), (5287, 39117), (11271, 18349), (12129, 17051), (13039, 15861)]