21005504

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{25247}}^1$

素因数の和:25272

約数の個数: 28

約数和(自身を含む): 44890944

約数和(自身を除く): 23885440

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 208, 416, 832, 25247, 50494, 100988, 201976, 328211, 403952, 656422, 807904, 1312844, 1615808, 2625688, 5251376, 10502752, 21005504]

約数ペア:

[(1, 21005504), (2, 10502752), (4, 5251376), (8, 2625688), (13, 1615808), (16, 1312844), (26, 807904), (32, 656422), (52, 403952), (64, 328211), (104, 201976), (208, 100988), (416, 50494), (832, 25247)]