21164841

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{41257}}^1$

素因数の和:41285

約数の個数: 16

約数和(自身を含む): 33006400

約数和(自身を除く): 11841559

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 41257, 123771, 371313, 783883, 1113939, 2351649, 7054947, 21164841]

約数ペア:

[(1, 21164841), (3, 7054947), (9, 2351649), (19, 1113939), (27, 783883), (57, 371313), (171, 123771), (513, 41257)]