21678484

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{293}}^1\times {\mathrm{349}}^1$

素因数の和:699

約数の個数: 24

約数和(自身を含む): 38896200

約数和(自身を除く): 17217716

約数列:

[1, 2, 4, 53, 106, 212, 293, 349, 586, 698, 1172, 1396, 15529, 18497, 31058, 36994, 62116, 73988, 102257, 204514, 409028, 5419621, 10839242, 21678484]

約数ペア:

[(1, 21678484), (2, 10839242), (4, 5419621), (53, 409028), (106, 204514), (212, 102257), (293, 73988), (349, 62116), (586, 36994), (698, 31058), (1172, 18497), (1396, 15529)]