21294338

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{251}}^2$

素因数の和:530

約数の個数: 18

約数和(自身を含む): 34725897

約数和(自身を除く): 13431559

約数列:

[1, 2, 13, 26, 169, 251, 338, 502, 3263, 6526, 42419, 63001, 84838, 126002, 819013, 1638026, 10647169, 21294338]

約数ペア:

[(1, 21294338), (2, 10647169), (13, 1638026), (26, 819013), (169, 126002), (251, 84838), (338, 63001), (502, 42419), (3263, 6526)]