21938480

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{4093}}^1$

素因数の和:4173

約数の個数: 40

約数和(自身を含む): 51780912

約数和(自身を除く): 29842432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 536, 670, 1072, 1340, 2680, 4093, 5360, 8186, 16372, 20465, 32744, 40930, 65488, 81860, 163720, 274231, 327440, 548462, 1096924, 1371155, 2193848, 2742310, 4387696, 5484620, 10969240, 21938480]

約数ペア:

[(1, 21938480), (2, 10969240), (4, 5484620), (5, 4387696), (8, 2742310), (10, 2193848), (16, 1371155), (20, 1096924), (40, 548462), (67, 327440), (80, 274231), (134, 163720), (268, 81860), (335, 65488), (536, 40930), (670, 32744), (1072, 20465), (1340, 16372), (2680, 8186), (4093, 5360)]