647894013

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{233}}^1$

素因数の和:374

約数の個数: 64

約数和(自身を含む): 1003871232

約数和(自身を除く): 355977219

約数列:

[1, 3, 13, 37, 39, 41, 47, 111, 123, 141, 233, 481, 533, 611, 699, 1443, 1517, 1599, 1739, 1833, 1927, 3029, 4551, 5217, 5781, 8621, 9087, 9553, 10951, 19721, 22607, 25051, 25863, 28659, 32853, 59163, 67821, 71299, 75153, 112073, 124189, 142363, 213897, 336219, 353461, 372567, 405187, 427089, 448991, 926887, 1060383, 1215561, 1346973, 2780661, 4594993, 5267431, 5836883, 13784979, 15802293, 16612667, 17510649, 49838001, 215964671, 647894013]

約数ペア:

[(1, 647894013), (3, 215964671), (13, 49838001), (37, 17510649), (39, 16612667), (41, 15802293), (47, 13784979), (111, 5836883), (123, 5267431), (141, 4594993), (233, 2780661), (481, 1346973), (533, 1215561), (611, 1060383), (699, 926887), (1443, 448991), (1517, 427089), (1599, 405187), (1739, 372567), (1833, 353461), (1927, 336219), (3029, 213897), (4551, 142363), (5217, 124189), (5781, 112073), (8621, 75153), (9087, 71299), (9553, 67821), (10951, 59163), (19721, 32853), (22607, 28659), (25051, 25863)]