21693801

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{167}}^1$

素因数の和:285

約数の個数: 32

約数和(自身を含む): 31933440

約数和(自身を除く): 10239639

約数列:

[1, 3, 19, 43, 53, 57, 129, 159, 167, 501, 817, 1007, 2279, 2451, 3021, 3173, 6837, 7181, 8851, 9519, 21543, 26553, 43301, 129903, 136439, 168169, 380593, 409317, 504507, 1141779, 7231267, 21693801]

約数ペア:

[(1, 21693801), (3, 7231267), (19, 1141779), (43, 504507), (53, 409317), (57, 380593), (129, 168169), (159, 136439), (167, 129903), (501, 43301), (817, 26553), (1007, 21543), (2279, 9519), (2451, 8851), (3021, 7181), (3173, 6837)]