21267624

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1783}}^1$

素因数の和:1870

約数の個数: 64

約数和(自身を含む): 61655040

約数和(自身を除く): 40387416

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 71, 84, 142, 168, 213, 284, 426, 497, 568, 852, 994, 1491, 1704, 1783, 1988, 2982, 3566, 3976, 5349, 5964, 7132, 10698, 11928, 12481, 14264, 21396, 24962, 37443, 42792, 49924, 74886, 99848, 126593, 149772, 253186, 299544, 379779, 506372, 759558, 886151, 1012744, 1519116, 1772302, 2658453, 3038232, 3544604, 5316906, 7089208, 10633812, 21267624]

約数ペア:

[(1, 21267624), (2, 10633812), (3, 7089208), (4, 5316906), (6, 3544604), (7, 3038232), (8, 2658453), (12, 1772302), (14, 1519116), (21, 1012744), (24, 886151), (28, 759558), (42, 506372), (56, 379779), (71, 299544), (84, 253186), (142, 149772), (168, 126593), (213, 99848), (284, 74886), (426, 49924), (497, 42792), (568, 37443), (852, 24962), (994, 21396), (1491, 14264), (1704, 12481), (1783, 11928), (1988, 10698), (2982, 7132), (3566, 5964), (3976, 5349)]