21516922

素因数分解:

$2^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{11057}}^1$

素因数の和:11205

約数の個数: 16

約数和(自身を含む): 37154880

約数和(自身を除く): 15637958

約数列:

[1, 2, 7, 14, 139, 278, 973, 1946, 11057, 22114, 77399, 154798, 1536923, 3073846, 10758461, 21516922]

約数ペア:

[(1, 21516922), (2, 10758461), (7, 3073846), (14, 1536923), (139, 154798), (278, 77399), (973, 22114), (1946, 11057)]