21320494

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{353}}^1$

素因数の和:492

約数の個数: 32

約数和(自身を含む): 36396864

約数和(自身を除く): 15076370

約数列:

[1, 2, 13, 23, 26, 46, 101, 202, 299, 353, 598, 706, 1313, 2323, 2626, 4589, 4646, 8119, 9178, 16238, 30199, 35653, 60398, 71306, 105547, 211094, 463489, 820019, 926978, 1640038, 10660247, 21320494]

約数ペア:

[(1, 21320494), (2, 10660247), (13, 1640038), (23, 926978), (26, 820019), (46, 463489), (101, 211094), (202, 105547), (299, 71306), (353, 60398), (598, 35653), (706, 30199), (1313, 16238), (2323, 9178), (2626, 8119), (4589, 4646)]