221518906

素因数分解:

$2^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{42649}}^1$

素因数の和:42718

約数の個数: 24

約数和(自身を含む): 393830100

約数和(自身を除く): 172311194

約数列:

[1, 2, 7, 14, 49, 53, 98, 106, 371, 742, 2597, 5194, 42649, 85298, 298543, 597086, 2089801, 2260397, 4179602, 4520794, 15822779, 31645558, 110759453, 221518906]

約数ペア:

[(1, 221518906), (2, 110759453), (7, 31645558), (14, 15822779), (49, 4520794), (53, 4179602), (98, 2260397), (106, 2089801), (371, 597086), (742, 298543), (2597, 85298), (5194, 42649)]