51478791

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{1867}}^1$

素因数の和:1991

約数の個数: 32

約数和(自身を含む): 85360128

約数和(自身を除く): 33881337

約数列:

[1, 3, 7, 13, 21, 39, 91, 101, 273, 303, 707, 1313, 1867, 2121, 3939, 5601, 9191, 13069, 24271, 27573, 39207, 72813, 169897, 188567, 509691, 565701, 1319969, 2451371, 3959907, 7354113, 17159597, 51478791]

約数ペア:

[(1, 51478791), (3, 17159597), (7, 7354113), (13, 3959907), (21, 2451371), (39, 1319969), (91, 565701), (101, 509691), (273, 188567), (303, 169897), (707, 72813), (1313, 39207), (1867, 27573), (2121, 24271), (3939, 13069), (5601, 9191)]