20179935

素因数分解:

$3^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{977}}^1$

素因数の和:1014

約数の個数: 48

約数和(自身を含む): 38447136

約数和(自身を除く): 18267201

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 81, 85, 135, 153, 243, 255, 405, 459, 765, 977, 1215, 1377, 2295, 2931, 4131, 4885, 6885, 8793, 14655, 16609, 20655, 26379, 43965, 49827, 79137, 83045, 131895, 149481, 237411, 249135, 395685, 448443, 747405, 1187055, 1345329, 2242215, 4035987, 6726645, 20179935]

約数ペア:

[(1, 20179935), (3, 6726645), (5, 4035987), (9, 2242215), (15, 1345329), (17, 1187055), (27, 747405), (45, 448443), (51, 395685), (81, 249135), (85, 237411), (135, 149481), (153, 131895), (243, 83045), (255, 79137), (405, 49827), (459, 43965), (765, 26379), (977, 20655), (1215, 16609), (1377, 14655), (2295, 8793), (2931, 6885), (4131, 4885)]