19283985

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{2111}}^1$

素因数の和:2158

約数の個数: 48

約数和(自身を含む): 39536640

約数和(自身を除く): 20252655

約数列:

[1, 3, 5, 7, 9, 15, 21, 29, 35, 45, 63, 87, 105, 145, 203, 261, 315, 435, 609, 1015, 1305, 1827, 2111, 3045, 6333, 9135, 10555, 14777, 18999, 31665, 44331, 61219, 73885, 94995, 132993, 183657, 221655, 306095, 428533, 550971, 664965, 918285, 1285599, 2142665, 2754855, 3856797, 6427995, 19283985]

約数ペア:

[(1, 19283985), (3, 6427995), (5, 3856797), (7, 2754855), (9, 2142665), (15, 1285599), (21, 918285), (29, 664965), (35, 550971), (45, 428533), (63, 306095), (87, 221655), (105, 183657), (145, 132993), (203, 94995), (261, 73885), (315, 61219), (435, 44331), (609, 31665), (1015, 18999), (1305, 14777), (1827, 10555), (2111, 9135), (3045, 6333)]