28538805

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{211}}^1$

素因数の和:417

約数の個数: 32

約数和(自身を含む): 46891008

約数和(自身を除く): 18352203

約数列:

[1, 3, 5, 15, 71, 127, 211, 213, 355, 381, 633, 635, 1055, 1065, 1905, 3165, 9017, 14981, 26797, 27051, 44943, 45085, 74905, 80391, 133985, 135255, 224715, 401955, 1902587, 5707761, 9512935, 28538805]

約数ペア:

[(1, 28538805), (3, 9512935), (5, 5707761), (15, 1902587), (71, 401955), (127, 224715), (211, 135255), (213, 133985), (355, 80391), (381, 74905), (633, 45085), (635, 44943), (1055, 27051), (1065, 26797), (1905, 14981), (3165, 9017)]