19728956

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{461}}^1\times {\mathrm{823}}^1$

素因数の和:1301

約数の個数: 24

約数和(自身を含む): 37307424

約数和(自身を除く): 17578468

約数列:

[1, 2, 4, 13, 26, 52, 461, 823, 922, 1646, 1844, 3292, 5993, 10699, 11986, 21398, 23972, 42796, 379403, 758806, 1517612, 4932239, 9864478, 19728956]

約数ペア:

[(1, 19728956), (2, 9864478), (4, 4932239), (13, 1517612), (26, 758806), (52, 379403), (461, 42796), (823, 23972), (922, 21398), (1646, 11986), (1844, 10699), (3292, 5993)]