21806964

素因数分解:

$2^2\times 3^2\times {\mathrm{257}}^1\times {\mathrm{2357}}^1$

素因数の和:2624

約数の個数: 36

約数和(自身を含む): 55361124

約数和(自身を除く): 33554160

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 257, 514, 771, 1028, 1542, 2313, 2357, 3084, 4626, 4714, 7071, 9252, 9428, 14142, 21213, 28284, 42426, 84852, 605749, 1211498, 1817247, 2422996, 3634494, 5451741, 7268988, 10903482, 21806964]

約数ペア:

[(1, 21806964), (2, 10903482), (3, 7268988), (4, 5451741), (6, 3634494), (9, 2422996), (12, 1817247), (18, 1211498), (36, 605749), (257, 84852), (514, 42426), (771, 28284), (1028, 21213), (1542, 14142), (2313, 9428), (2357, 9252), (3084, 7071), (4626, 4714)]