21710547

素因数分解:

$3^2\times {\mathrm{17}}^3\times {\mathrm{491}}^1$

素因数の和:548

約数の個数: 24

約数和(自身を含む): 33387120

約数和(自身を除く): 11676573

約数列:

[1, 3, 9, 17, 51, 153, 289, 491, 867, 1473, 2601, 4419, 4913, 8347, 14739, 25041, 44217, 75123, 141899, 425697, 1277091, 2412283, 7236849, 21710547]

約数ペア:

[(1, 21710547), (3, 7236849), (9, 2412283), (17, 1277091), (51, 425697), (153, 141899), (289, 75123), (491, 44217), (867, 25041), (1473, 14739), (2601, 8347), (4419, 4913)]