21085824

素因数分解:

$2^7\times 3^1\times {\mathrm{43}}^1\times {\mathrm{1277}}^1$

素因数の和:1337

約数の個数: 64

約数和(自身を含む): 57356640

約数和(自身を除く): 36270816

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 43, 48, 64, 86, 96, 128, 129, 172, 192, 258, 344, 384, 516, 688, 1032, 1277, 1376, 2064, 2554, 2752, 3831, 4128, 5108, 5504, 7662, 8256, 10216, 15324, 16512, 20432, 30648, 40864, 54911, 61296, 81728, 109822, 122592, 163456, 164733, 219644, 245184, 329466, 439288, 490368, 658932, 878576, 1317864, 1757152, 2635728, 3514304, 5271456, 7028608, 10542912, 21085824]

約数ペア:

[(1, 21085824), (2, 10542912), (3, 7028608), (4, 5271456), (6, 3514304), (8, 2635728), (12, 1757152), (16, 1317864), (24, 878576), (32, 658932), (43, 490368), (48, 439288), (64, 329466), (86, 245184), (96, 219644), (128, 164733), (129, 163456), (172, 122592), (192, 109822), (258, 81728), (344, 61296), (384, 54911), (516, 40864), (688, 30648), (1032, 20432), (1277, 16512), (1376, 15324), (2064, 10216), (2554, 8256), (2752, 7662), (3831, 5504), (4128, 5108)]