20696624

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{5237}}^1$

素因数の和:5277

約数の個数: 40

約数和(自身を含む): 45465840

約数和(自身を除く): 24769216

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1976, 3952, 5237, 10474, 20948, 41896, 68081, 83792, 99503, 136162, 199006, 272324, 398012, 544648, 796024, 1089296, 1293539, 1592048, 2587078, 5174156, 10348312, 20696624]

約数ペア:

[(1, 20696624), (2, 10348312), (4, 5174156), (8, 2587078), (13, 1592048), (16, 1293539), (19, 1089296), (26, 796024), (38, 544648), (52, 398012), (76, 272324), (104, 199006), (152, 136162), (208, 99503), (247, 83792), (304, 68081), (494, 41896), (988, 20948), (1976, 10474), (3952, 5237)]