21703977

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{523}}^1$

素因数の和:614

約数の個数: 32

約数和(自身を含む): 33955200

約数和(自身を除く): 12251223

約数列:

[1, 3, 9, 27, 29, 53, 87, 159, 261, 477, 523, 783, 1431, 1537, 1569, 4611, 4707, 13833, 14121, 15167, 27719, 41499, 45501, 83157, 136503, 249471, 409509, 748413, 803851, 2411553, 7234659, 21703977]

約数ペア:

[(1, 21703977), (3, 7234659), (9, 2411553), (27, 803851), (29, 748413), (53, 409509), (87, 249471), (159, 136503), (261, 83157), (477, 45501), (523, 41499), (783, 27719), (1431, 15167), (1537, 14121), (1569, 13833), (4611, 4707)]