20781663168

素因数分解:

$2^6\times 3^1\times 7^1\times {\mathrm{15462547}}^1$

素因数の和:15462569

約数の個数: 56

約数和(自身を含む): 62839795072

約数和(自身を除く): 42058131904

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 64, 84, 96, 112, 168, 192, 224, 336, 448, 672, 1344, 15462547, 30925094, 46387641, 61850188, 92775282, 108237829, 123700376, 185550564, 216475658, 247400752, 324713487, 371101128, 432951316, 494801504, 649426974, 742202256, 865902632, 989603008, 1298853948, 1484404512, 1731805264, 2597707896, 2968809024, 3463610528, 5195415792, 6927221056, 10390831584, 20781663168]

約数ペア:

[(1, 20781663168), (2, 10390831584), (3, 6927221056), (4, 5195415792), (6, 3463610528), (7, 2968809024), (8, 2597707896), (12, 1731805264), (14, 1484404512), (16, 1298853948), (21, 989603008), (24, 865902632), (28, 742202256), (32, 649426974), (42, 494801504), (48, 432951316), (56, 371101128), (64, 324713487), (84, 247400752), (96, 216475658), (112, 185550564), (168, 123700376), (192, 108237829), (224, 92775282), (336, 61850188), (448, 46387641), (672, 30925094), (1344, 15462547)]