19657456

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{587}}^1$

素因数の和:638

約数の個数: 80

約数和(自身を含む): 48996864

約数和(自身を除く): 29339408

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 23, 26, 28, 46, 52, 56, 91, 92, 104, 112, 161, 182, 184, 208, 299, 322, 364, 368, 587, 598, 644, 728, 1174, 1196, 1288, 1456, 2093, 2348, 2392, 2576, 4109, 4186, 4696, 4784, 7631, 8218, 8372, 9392, 13501, 15262, 16436, 16744, 27002, 30524, 32872, 33488, 53417, 54004, 61048, 65744, 94507, 106834, 108008, 122096, 175513, 189014, 213668, 216016, 351026, 378028, 427336, 702052, 756056, 854672, 1228591, 1404104, 1512112, 2457182, 2808208, 4914364, 9828728, 19657456]

約数ペア:

[(1, 19657456), (2, 9828728), (4, 4914364), (7, 2808208), (8, 2457182), (13, 1512112), (14, 1404104), (16, 1228591), (23, 854672), (26, 756056), (28, 702052), (46, 427336), (52, 378028), (56, 351026), (91, 216016), (92, 213668), (104, 189014), (112, 175513), (161, 122096), (182, 108008), (184, 106834), (208, 94507), (299, 65744), (322, 61048), (364, 54004), (368, 53417), (587, 33488), (598, 32872), (644, 30524), (728, 27002), (1174, 16744), (1196, 16436), (1288, 15262), (1456, 13501), (2093, 9392), (2348, 8372), (2392, 8218), (2576, 7631), (4109, 4784), (4186, 4696)]