21778052

素因数分解:

$2^2\times {\mathrm{37}}^2\times {\mathrm{41}}^1\times {\mathrm{97}}^1$

素因数の和:216

約数の個数: 36

約数和(自身を含む): 40538484

約数和(自身を除く): 18760432

約数列:

[1, 2, 4, 37, 41, 74, 82, 97, 148, 164, 194, 388, 1369, 1517, 2738, 3034, 3589, 3977, 5476, 6068, 7178, 7954, 14356, 15908, 56129, 112258, 132793, 147149, 224516, 265586, 294298, 531172, 588596, 5444513, 10889026, 21778052]

約数ペア:

[(1, 21778052), (2, 10889026), (4, 5444513), (37, 588596), (41, 531172), (74, 294298), (82, 265586), (97, 224516), (148, 147149), (164, 132793), (194, 112258), (388, 56129), (1369, 15908), (1517, 14356), (2738, 7954), (3034, 7178), (3589, 6068), (3977, 5476)]