20147887515

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{455783}}^1$

素因数の和:456219

約数の個数: 32

約数和(自身を含む): 36929442816

約数和(自身を除く): 16781555301

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 421, 1263, 2105, 2947, 6315, 8841, 14735, 44205, 455783, 1367349, 2278915, 3190481, 6836745, 9571443, 15952405, 47857215, 191884643, 575653929, 959423215, 1343192501, 2878269645, 4029577503, 6715962505, 20147887515]

約数ペア:

[(1, 20147887515), (3, 6715962505), (5, 4029577503), (7, 2878269645), (15, 1343192501), (21, 959423215), (35, 575653929), (105, 191884643), (421, 47857215), (1263, 15952405), (2105, 9571443), (2947, 6836745), (6315, 3190481), (8841, 2278915), (14735, 1367349), (44205, 455783)]