21819994

素因数分解:

$2^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{4201}}^1$

素因数の和:4270

約数の個数: 24

約数和(自身を含む): 38801268

約数和(自身を除く): 16981274

約数列:

[1, 2, 7, 14, 49, 53, 98, 106, 371, 742, 2597, 4201, 5194, 8402, 29407, 58814, 205849, 222653, 411698, 445306, 1558571, 3117142, 10909997, 21819994]

約数ペア:

[(1, 21819994), (2, 10909997), (7, 3117142), (14, 1558571), (49, 445306), (53, 411698), (98, 222653), (106, 205849), (371, 58814), (742, 29407), (2597, 8402), (4201, 5194)]