21284997

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{1453}}^1$

素因数の和:1732

約数の個数: 16

約数和(自身を含む): 30010560

約数和(自身を除く): 8725563

約数列:

[1, 3, 19, 57, 257, 771, 1453, 4359, 4883, 14649, 27607, 82821, 373421, 1120263, 7094999, 21284997]

約数ペア:

[(1, 21284997), (3, 7094999), (19, 1120263), (57, 373421), (257, 82821), (771, 27607), (1453, 14649), (4359, 4883)]