21484976

素因数分解:

$2^4\times {\mathrm{103}}^1\times {\mathrm{13037}}^1$

素因数の和:13148

約数の個数: 20

約数和(自身を含む): 42034512

約数和(自身を除く): 20549536

約数列:

[1, 2, 4, 8, 16, 103, 206, 412, 824, 1648, 13037, 26074, 52148, 104296, 208592, 1342811, 2685622, 5371244, 10742488, 21484976]

約数ペア:

[(1, 21484976), (2, 10742488), (4, 5371244), (8, 2685622), (16, 1342811), (103, 208592), (206, 104296), (412, 52148), (824, 26074), (1648, 13037)]