21731888

素因数分解:

$2^4\times {\mathrm{487}}^1\times {\mathrm{2789}}^1$

素因数の和:3284

約数の個数: 20

約数和(自身を含む): 42207120

約数和(自身を除く): 20475232

約数列:

[1, 2, 4, 8, 16, 487, 974, 1948, 2789, 3896, 5578, 7792, 11156, 22312, 44624, 1358243, 2716486, 5432972, 10865944, 21731888]

約数ペア:

[(1, 21731888), (2, 10865944), (4, 5432972), (8, 2716486), (16, 1358243), (487, 44624), (974, 22312), (1948, 11156), (2789, 7792), (3896, 5578)]