19664512

素因数分解:

$2^7\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1291}}^1$

素因数の和:1329

約数の個数: 64

約数和(自身を含む): 47442240

約数和(自身を除く): 27777728

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 32, 34, 56, 64, 68, 112, 119, 128, 136, 224, 238, 272, 448, 476, 544, 896, 952, 1088, 1291, 1904, 2176, 2582, 3808, 5164, 7616, 9037, 10328, 15232, 18074, 20656, 21947, 36148, 41312, 43894, 72296, 82624, 87788, 144592, 153629, 165248, 175576, 289184, 307258, 351152, 578368, 614516, 702304, 1156736, 1229032, 1404608, 2458064, 2809216, 4916128, 9832256, 19664512]

約数ペア:

[(1, 19664512), (2, 9832256), (4, 4916128), (7, 2809216), (8, 2458064), (14, 1404608), (16, 1229032), (17, 1156736), (28, 702304), (32, 614516), (34, 578368), (56, 351152), (64, 307258), (68, 289184), (112, 175576), (119, 165248), (128, 153629), (136, 144592), (224, 87788), (238, 82624), (272, 72296), (448, 43894), (476, 41312), (544, 36148), (896, 21947), (952, 20656), (1088, 18074), (1291, 15232), (1904, 10328), (2176, 9037), (2582, 7616), (3808, 5164)]