21769803

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{461}}^1$

素因数の和:537

約数の個数: 40

約数和(自身を含む): 36224496

約数和(自身を除く): 14454693

約数列:

[1, 3, 9, 11, 27, 33, 53, 81, 99, 159, 297, 461, 477, 583, 891, 1383, 1431, 1749, 4149, 4293, 5071, 5247, 12447, 15213, 15741, 24433, 37341, 45639, 47223, 73299, 136917, 219897, 268763, 410751, 659691, 806289, 1979073, 2418867, 7256601, 21769803]

約数ペア:

[(1, 21769803), (3, 7256601), (9, 2418867), (11, 1979073), (27, 806289), (33, 659691), (53, 410751), (81, 268763), (99, 219897), (159, 136917), (297, 73299), (461, 47223), (477, 45639), (583, 37341), (891, 24433), (1383, 15741), (1431, 15213), (1749, 12447), (4149, 5247), (4293, 5071)]