21721728

素因数分解:

$2^7\times 3^1\times 7^1\times {\mathrm{8081}}^1$

素因数の和:8105

約数の個数: 64

約数和(自身を含む): 65949120

約数和(自身を除く): 44227392

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 64, 84, 96, 112, 128, 168, 192, 224, 336, 384, 448, 672, 896, 1344, 2688, 8081, 16162, 24243, 32324, 48486, 56567, 64648, 96972, 113134, 129296, 169701, 193944, 226268, 258592, 339402, 387888, 452536, 517184, 678804, 775776, 905072, 1034368, 1357608, 1551552, 1810144, 2715216, 3103104, 3620288, 5430432, 7240576, 10860864, 21721728]

約数ペア:

[(1, 21721728), (2, 10860864), (3, 7240576), (4, 5430432), (6, 3620288), (7, 3103104), (8, 2715216), (12, 1810144), (14, 1551552), (16, 1357608), (21, 1034368), (24, 905072), (28, 775776), (32, 678804), (42, 517184), (48, 452536), (56, 387888), (64, 339402), (84, 258592), (96, 226268), (112, 193944), (128, 169701), (168, 129296), (192, 113134), (224, 96972), (336, 64648), (384, 56567), (448, 48486), (672, 32324), (896, 24243), (1344, 16162), (2688, 8081)]