39891761

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{179}}^1$

素因数の和:309

約数の個数: 32

約数和(自身を含む): 51609600

約数和(自身を除く): 11717839

約数列:

[1, 7, 13, 31, 79, 91, 179, 217, 403, 553, 1027, 1253, 2327, 2449, 2821, 5549, 7189, 14141, 16289, 17143, 31837, 38843, 72137, 98987, 183833, 222859, 438371, 504959, 1286831, 3068597, 5698823, 39891761]

約数ペア:

[(1, 39891761), (7, 5698823), (13, 3068597), (31, 1286831), (79, 504959), (91, 438371), (179, 222859), (217, 183833), (403, 98987), (553, 72137), (1027, 38843), (1253, 31837), (2327, 17143), (2449, 16289), (2821, 14141), (5549, 7189)]