20431935

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1039}}^1$

素因数の和:1092

約数の個数: 48

約数和(自身を含む): 38937600

約数和(自身を除く): 18505665

約数列:

[1, 3, 5, 9, 15, 19, 23, 45, 57, 69, 95, 115, 171, 207, 285, 345, 437, 855, 1035, 1039, 1311, 2185, 3117, 3933, 5195, 6555, 9351, 15585, 19665, 19741, 23897, 46755, 59223, 71691, 98705, 119485, 177669, 215073, 296115, 358455, 454043, 888345, 1075365, 1362129, 2270215, 4086387, 6810645, 20431935]

約数ペア:

[(1, 20431935), (3, 6810645), (5, 4086387), (9, 2270215), (15, 1362129), (19, 1075365), (23, 888345), (45, 454043), (57, 358455), (69, 296115), (95, 215073), (115, 177669), (171, 119485), (207, 98705), (285, 71691), (345, 59223), (437, 46755), (855, 23897), (1035, 19741), (1039, 19665), (1311, 15585), (2185, 9351), (3117, 6555), (3933, 5195)]