21000612447

素因数分解:

$3^3\times {\mathrm{19273}}^1\times {\mathrm{40357}}^1$

素因数の和:59639

約数の個数: 16

約数和(自身を含む): 31114403680

約数和(自身を除く): 10113791233

約数列:

[1, 3, 9, 27, 19273, 40357, 57819, 121071, 173457, 363213, 520371, 1089639, 777800461, 2333401383, 7000204149, 21000612447]

約数ペア:

[(1, 21000612447), (3, 7000204149), (9, 2333401383), (27, 777800461), (19273, 1089639), (40357, 520371), (57819, 363213), (121071, 173457)]