21771536

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{15289}}^1$

素因数の和:15386

約数の個数: 20

約数和(自身を含む): 42659100

約数和(自身を除く): 20887564

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 1424, 15289, 30578, 61156, 122312, 244624, 1360721, 2721442, 5442884, 10885768, 21771536]

約数ペア:

[(1, 21771536), (2, 10885768), (4, 5442884), (8, 2721442), (16, 1360721), (89, 244624), (178, 122312), (356, 61156), (712, 30578), (1424, 15289)]