21851451

素因数分解:

$3^4\times {\mathrm{101}}^1\times {\mathrm{2671}}^1$

素因数の和:2784

約数の個数: 20

約数和(自身を含む): 32977824

約数和(自身を除く): 11126373

約数列:

[1, 3, 9, 27, 81, 101, 303, 909, 2671, 2727, 8013, 8181, 24039, 72117, 216351, 269771, 809313, 2427939, 7283817, 21851451]

約数ペア:

[(1, 21851451), (3, 7283817), (9, 2427939), (27, 809313), (81, 269771), (101, 216351), (303, 72117), (909, 24039), (2671, 8181), (2727, 8013)]