19808552

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{647}}^1$

素因数の和:785

約数の個数: 32

約数和(自身を含む): 38491200

約数和(自身を除く): 18682648

約数列:

[1, 2, 4, 8, 43, 86, 89, 172, 178, 344, 356, 647, 712, 1294, 2588, 3827, 5176, 7654, 15308, 27821, 30616, 55642, 57583, 111284, 115166, 222568, 230332, 460664, 2476069, 4952138, 9904276, 19808552]

約数ペア:

[(1, 19808552), (2, 9904276), (4, 4952138), (8, 2476069), (43, 460664), (86, 230332), (89, 222568), (172, 115166), (178, 111284), (344, 57583), (356, 55642), (647, 30616), (712, 27821), (1294, 15308), (2588, 7654), (3827, 5176)]