20683761

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{51839}}^1$

素因数の和:51868

約数の個数: 16

約数和(自身を含む): 33177600

約数和(自身を除く): 12493839

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 51839, 155517, 362873, 984941, 1088619, 2954823, 6894587, 20683761]

約数ペア:

[(1, 20683761), (3, 6894587), (7, 2954823), (19, 1088619), (21, 984941), (57, 362873), (133, 155517), (399, 51839)]