21264368

素因数分解:

$2^4\times {\mathrm{487}}^1\times {\mathrm{2729}}^1$

素因数の和:3224

約数の個数: 20

約数和(自身を含む): 41299440

約数和(自身を除く): 20035072

約数列:

[1, 2, 4, 8, 16, 487, 974, 1948, 2729, 3896, 5458, 7792, 10916, 21832, 43664, 1329023, 2658046, 5316092, 10632184, 21264368]

約数ペア:

[(1, 21264368), (2, 10632184), (4, 5316092), (8, 2658046), (16, 1329023), (487, 43664), (974, 21832), (1948, 10916), (2729, 7792), (3896, 5458)]