1644640947

素因数分解:

$3^2\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{42193}}^1$

素因数の和:42331

約数の個数: 24

約数和(自身を含む): 2448602208

約数和(自身を除く): 803961261

約数列:

[1, 3, 9, 61, 71, 183, 213, 549, 639, 4331, 12993, 38979, 42193, 126579, 379737, 2573773, 2995703, 7721319, 8987109, 23163957, 26961327, 182737883, 548213649, 1644640947]

約数ペア:

[(1, 1644640947), (3, 548213649), (9, 182737883), (61, 26961327), (71, 23163957), (183, 8987109), (213, 7721319), (549, 2995703), (639, 2573773), (4331, 379737), (12993, 126579), (38979, 42193)]