21084813

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1787}}^1$

素因数の和:1838

約数の個数: 32

約数和(自身を含む): 34329600

約数和(自身を除く): 13244787

約数列:

[1, 3, 9, 19, 23, 27, 57, 69, 171, 207, 437, 513, 621, 1311, 1787, 3933, 5361, 11799, 16083, 33953, 41101, 48249, 101859, 123303, 305577, 369909, 780919, 916731, 1109727, 2342757, 7028271, 21084813]

約数ペア:

[(1, 21084813), (3, 7028271), (9, 2342757), (19, 1109727), (23, 916731), (27, 780919), (57, 369909), (69, 305577), (171, 123303), (207, 101859), (437, 48249), (513, 41101), (621, 33953), (1311, 16083), (1787, 11799), (3933, 5361)]