651651

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1$

素因数の和:72

約数の個数: 48

約数和(自身を含む): 1225728

約数和(自身を除く): 574077

約数列:

[1, 3, 7, 11, 13, 21, 31, 33, 39, 49, 77, 91, 93, 143, 147, 217, 231, 273, 341, 403, 429, 539, 637, 651, 1001, 1023, 1209, 1519, 1617, 1911, 2387, 2821, 3003, 4433, 4557, 7007, 7161, 8463, 13299, 16709, 19747, 21021, 31031, 50127, 59241, 93093, 217217, 651651]

約数ペア:

[(1, 651651), (3, 217217), (7, 93093), (11, 59241), (13, 50127), (21, 31031), (31, 21021), (33, 19747), (39, 16709), (49, 13299), (77, 8463), (91, 7161), (93, 7007), (143, 4557), (147, 4433), (217, 3003), (231, 2821), (273, 2387), (341, 1911), (403, 1617), (429, 1519), (539, 1209), (637, 1023), (651, 1001)]