21494517

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{6449}}^1$

素因数の和:6564

約数の個数: 16

約数和(自身を含む): 31579200

約数和(自身を除く): 10084683

約数列:

[1, 3, 11, 33, 101, 303, 1111, 3333, 6449, 19347, 70939, 212817, 651349, 1954047, 7164839, 21494517]

約数ペア:

[(1, 21494517), (3, 7164839), (11, 1954047), (33, 651349), (101, 212817), (303, 70939), (1111, 19347), (3333, 6449)]