21239008

素因数分解:

$2^5\times 7^1\times {\mathrm{53}}^1\times {\mathrm{1789}}^1$

素因数の和:1859

約数の個数: 48

約数和(自身を含む): 48716640

約数和(自身を除く): 27477632

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 53, 56, 106, 112, 212, 224, 371, 424, 742, 848, 1484, 1696, 1789, 2968, 3578, 5936, 7156, 11872, 12523, 14312, 25046, 28624, 50092, 57248, 94817, 100184, 189634, 200368, 379268, 400736, 663719, 758536, 1327438, 1517072, 2654876, 3034144, 5309752, 10619504, 21239008]

約数ペア:

[(1, 21239008), (2, 10619504), (4, 5309752), (7, 3034144), (8, 2654876), (14, 1517072), (16, 1327438), (28, 758536), (32, 663719), (53, 400736), (56, 379268), (106, 200368), (112, 189634), (212, 100184), (224, 94817), (371, 57248), (424, 50092), (742, 28624), (848, 25046), (1484, 14312), (1696, 12523), (1789, 11872), (2968, 7156), (3578, 5936)]