21387834

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{30467}}^1$

素因数の和:30491

約数の個数: 32

約数和(自身を含む): 51186240

約数和(自身を除く): 29798406

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 117, 234, 351, 702, 30467, 60934, 91401, 182802, 274203, 396071, 548406, 792142, 822609, 1188213, 1645218, 2376426, 3564639, 7129278, 10693917, 21387834]

約数ペア:

[(1, 21387834), (2, 10693917), (3, 7129278), (6, 3564639), (9, 2376426), (13, 1645218), (18, 1188213), (26, 822609), (27, 792142), (39, 548406), (54, 396071), (78, 274203), (117, 182802), (234, 91401), (351, 60934), (702, 30467)]