53881821

素因数分解:

$3^3\times 7^2\times {\mathrm{139}}^1\times {\mathrm{293}}^1$

素因数の和:455

約数の個数: 48

約数和(自身を含む): 93844800

約数和(自身を除く): 39962979

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 139, 147, 189, 293, 417, 441, 879, 973, 1251, 1323, 2051, 2637, 2919, 3753, 6153, 6811, 7911, 8757, 14357, 18459, 20433, 26271, 40727, 43071, 55377, 61299, 122181, 129213, 183897, 285089, 366543, 387639, 855267, 1099629, 1995623, 2565801, 5986869, 7697403, 17960607, 53881821]

約数ペア:

[(1, 53881821), (3, 17960607), (7, 7697403), (9, 5986869), (21, 2565801), (27, 1995623), (49, 1099629), (63, 855267), (139, 387639), (147, 366543), (189, 285089), (293, 183897), (417, 129213), (441, 122181), (879, 61299), (973, 55377), (1251, 43071), (1323, 40727), (2051, 26271), (2637, 20433), (2919, 18459), (3753, 14357), (6153, 8757), (6811, 7911)]