21726215

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{883}}^1$

素因数の和:951

約数の個数: 32

約数和(自身を含む): 32248320

約数和(自身を除く): 10522105

約数列:

[1, 5, 7, 19, 35, 37, 95, 133, 185, 259, 665, 703, 883, 1295, 3515, 4415, 4921, 6181, 16777, 24605, 30905, 32671, 83885, 117439, 163355, 228697, 587195, 620749, 1143485, 3103745, 4345243, 21726215]

約数ペア:

[(1, 21726215), (5, 4345243), (7, 3103745), (19, 1143485), (35, 620749), (37, 587195), (95, 228697), (133, 163355), (185, 117439), (259, 83885), (665, 32671), (703, 30905), (883, 24605), (1295, 16777), (3515, 6181), (4415, 4921)]