21995792

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{15107}}^1$

素因数の和:15135

約数の個数: 40

約数和(自身を含む): 52454976

約数和(自身を除く): 30459184

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 15107, 30214, 60428, 105749, 120856, 196391, 211498, 241712, 392782, 422996, 785564, 845992, 1374737, 1571128, 1691984, 2749474, 3142256, 5498948, 10997896, 21995792]

約数ペア:

[(1, 21995792), (2, 10997896), (4, 5498948), (7, 3142256), (8, 2749474), (13, 1691984), (14, 1571128), (16, 1374737), (26, 845992), (28, 785564), (52, 422996), (56, 392782), (91, 241712), (104, 211498), (112, 196391), (182, 120856), (208, 105749), (364, 60428), (728, 30214), (1456, 15107)]