21984771

素因数分解:

$3^1\times {\mathrm{37}}^2\times {\mathrm{53}}^1\times {\mathrm{101}}^1$

素因数の和:231

約数の個数: 24

約数和(自身を含む): 30999024

約数和(自身を除く): 9014253

約数列:

[1, 3, 37, 53, 101, 111, 159, 303, 1369, 1961, 3737, 4107, 5353, 5883, 11211, 16059, 72557, 138269, 198061, 217671, 414807, 594183, 7328257, 21984771]

約数ペア:

[(1, 21984771), (3, 7328257), (37, 594183), (53, 414807), (101, 217671), (111, 198061), (159, 138269), (303, 72557), (1369, 16059), (1961, 11211), (3737, 5883), (4107, 5353)]