21501232

素因数分解:

$2^4\times {\mathrm{811}}^1\times {\mathrm{1657}}^1$

素因数の和:2476

約数の個数: 20

約数和(自身を含む): 41735176

約数和(自身を除く): 20233944

約数列:

[1, 2, 4, 8, 16, 811, 1622, 1657, 3244, 3314, 6488, 6628, 12976, 13256, 26512, 1343827, 2687654, 5375308, 10750616, 21501232]

約数ペア:

[(1, 21501232), (2, 10750616), (4, 5375308), (8, 2687654), (16, 1343827), (811, 26512), (1622, 13256), (1657, 12976), (3244, 6628), (3314, 6488)]