20954955

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{8677}}^1$

素因数の和:8715

約数の個数: 32

約数和(自身を含む): 39988224

約数和(自身を除く): 19033269

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 69, 105, 115, 161, 345, 483, 805, 2415, 8677, 26031, 43385, 60739, 130155, 182217, 199571, 303695, 598713, 911085, 997855, 1396997, 2993565, 4190991, 6984985, 20954955]

約数ペア:

[(1, 20954955), (3, 6984985), (5, 4190991), (7, 2993565), (15, 1396997), (21, 997855), (23, 911085), (35, 598713), (69, 303695), (105, 199571), (115, 182217), (161, 130155), (345, 60739), (483, 43385), (805, 26031), (2415, 8677)]