19457776

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{673}}^1$

素因数の和:833

約数の個数: 40

約数和(自身を含む): 40952240

約数和(自身を除く): 21494464

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 139, 208, 278, 556, 673, 1112, 1346, 1807, 2224, 2692, 3614, 5384, 7228, 8749, 10768, 14456, 17498, 28912, 34996, 69992, 93547, 139984, 187094, 374188, 748376, 1216111, 1496752, 2432222, 4864444, 9728888, 19457776]

約数ペア:

[(1, 19457776), (2, 9728888), (4, 4864444), (8, 2432222), (13, 1496752), (16, 1216111), (26, 748376), (52, 374188), (104, 187094), (139, 139984), (208, 93547), (278, 69992), (556, 34996), (673, 28912), (1112, 17498), (1346, 14456), (1807, 10768), (2224, 8749), (2692, 7228), (3614, 5384)]