20900974

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{8573}}^1$

素因数の和:8651

約数の個数: 16

約数和(自身を含む): 33335712

約数和(自身を除く): 12434738

約数列:

[1, 2, 23, 46, 53, 106, 1219, 2438, 8573, 17146, 197179, 394358, 454369, 908738, 10450487, 20900974]

約数ペア:

[(1, 20900974), (2, 10450487), (23, 908738), (46, 454369), (53, 394358), (106, 197179), (1219, 17146), (2438, 8573)]