21530229

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1\times {\mathrm{211}}^1$

素因数の和:377

約数の個数: 32

約数和(自身を含む): 34028544

約数和(自身を除く): 12498315

約数列:

[1, 3, 7, 21, 43, 113, 129, 211, 301, 339, 633, 791, 903, 1477, 2373, 4431, 4859, 9073, 14577, 23843, 27219, 34013, 63511, 71529, 102039, 166901, 190533, 500703, 1025249, 3075747, 7176743, 21530229]

約数ペア:

[(1, 21530229), (3, 7176743), (7, 3075747), (21, 1025249), (43, 500703), (113, 190533), (129, 166901), (211, 102039), (301, 71529), (339, 63511), (633, 34013), (791, 27219), (903, 23843), (1477, 14577), (2373, 9073), (4431, 4859)]