21255496

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{331}}^1\times {\mathrm{349}}^1$

素因数の和:709

約数の個数: 32

約数和(自身を含む): 41832000

約数和(自身を除く): 20576504

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 331, 349, 662, 698, 1324, 1396, 2648, 2792, 7613, 8027, 15226, 16054, 30452, 32108, 60904, 64216, 115519, 231038, 462076, 924152, 2656937, 5313874, 10627748, 21255496]

約数ペア:

[(1, 21255496), (2, 10627748), (4, 5313874), (8, 2656937), (23, 924152), (46, 462076), (92, 231038), (184, 115519), (331, 64216), (349, 60904), (662, 32108), (698, 30452), (1324, 16054), (1396, 15226), (2648, 8027), (2792, 7613)]