21777855

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{1483}}^1$

素因数の和:1591

約数の個数: 32

約数和(自身を含む): 38465280

約数和(自身を除く): 16687425

約数列:

[1, 3, 5, 11, 15, 33, 55, 89, 165, 267, 445, 979, 1335, 1483, 2937, 4449, 4895, 7415, 14685, 16313, 22245, 48939, 81565, 131987, 244695, 395961, 659935, 1451857, 1979805, 4355571, 7259285, 21777855]

約数ペア:

[(1, 21777855), (3, 7259285), (5, 4355571), (11, 1979805), (15, 1451857), (33, 659935), (55, 395961), (89, 244695), (165, 131987), (267, 81565), (445, 48939), (979, 22245), (1335, 16313), (1483, 14685), (2937, 7415), (4449, 4895)]