28988235

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1$

素因数の和:336

約数の個数: 48

約数和(自身を含む): 52386048

約数和(自身を除く): 23397813

約数列:

[1, 3, 5, 9, 15, 43, 45, 71, 129, 211, 213, 215, 355, 387, 633, 639, 645, 1055, 1065, 1899, 1935, 3053, 3165, 3195, 9073, 9159, 9495, 14981, 15265, 27219, 27477, 44943, 45365, 45795, 74905, 81657, 134829, 136095, 137385, 224715, 408285, 644183, 674145, 1932549, 3220915, 5797647, 9662745, 28988235]

約数ペア:

[(1, 28988235), (3, 9662745), (5, 5797647), (9, 3220915), (15, 1932549), (43, 674145), (45, 644183), (71, 408285), (129, 224715), (211, 137385), (213, 136095), (215, 134829), (355, 81657), (387, 74905), (633, 45795), (639, 45365), (645, 44943), (1055, 27477), (1065, 27219), (1899, 15265), (1935, 14981), (3053, 9495), (3165, 9159), (3195, 9073)]