21408184

素因数分解:

$2^3\times 7^1\times {\mathrm{53}}^1\times {\mathrm{7213}}^1$

素因数の和:7279

約数の個数: 32

約数和(自身を含む): 46746720

約数和(自身を除く): 25338536

約数列:

[1, 2, 4, 7, 8, 14, 28, 53, 56, 106, 212, 371, 424, 742, 1484, 2968, 7213, 14426, 28852, 50491, 57704, 100982, 201964, 382289, 403928, 764578, 1529156, 2676023, 3058312, 5352046, 10704092, 21408184]

約数ペア:

[(1, 21408184), (2, 10704092), (4, 5352046), (7, 3058312), (8, 2676023), (14, 1529156), (28, 764578), (53, 403928), (56, 382289), (106, 201964), (212, 100982), (371, 57704), (424, 50491), (742, 28852), (1484, 14426), (2968, 7213)]