51555231

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{20983}}^1$

素因数の和:21012

約数の個数: 32

約数和(自身を含む): 94008320

約数和(自身を除く): 42453089

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 91, 117, 189, 273, 351, 819, 2457, 20983, 62949, 146881, 188847, 272779, 440643, 566541, 818337, 1321929, 1909453, 2455011, 3965787, 5728359, 7365033, 17185077, 51555231]

約数ペア:

[(1, 51555231), (3, 17185077), (7, 7365033), (9, 5728359), (13, 3965787), (21, 2455011), (27, 1909453), (39, 1321929), (63, 818337), (91, 566541), (117, 440643), (189, 272779), (273, 188847), (351, 146881), (819, 62949), (2457, 20983)]