20824895

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1237}}^1$

素因数の和:1299

約数の個数: 32

約数和(自身を含む): 31613568

約数和(自身を除く): 10788673

約数列:

[1, 5, 7, 13, 35, 37, 65, 91, 185, 259, 455, 481, 1237, 1295, 2405, 3367, 6185, 8659, 16081, 16835, 43295, 45769, 80405, 112567, 228845, 320383, 562835, 594997, 1601915, 2974985, 4164979, 20824895]

約数ペア:

[(1, 20824895), (5, 4164979), (7, 2974985), (13, 1601915), (35, 594997), (37, 562835), (65, 320383), (91, 228845), (185, 112567), (259, 80405), (455, 45769), (481, 43295), (1237, 16835), (1295, 16081), (2405, 8659), (3367, 6185)]